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Articles 61 - 90 of 116
Full-Text Articles in Physical Sciences and Mathematics
Twins Or The Omega Phase: Which Is It In High Carbon Steels?, Gilberto Casillas, Wenwen Song, Azdiar Adil Gazder
Twins Or The Omega Phase: Which Is It In High Carbon Steels?, Gilberto Casillas, Wenwen Song, Azdiar Adil Gazder
Australian Institute for Innovative Materials - Papers
© 2020 Acta Materialia Inc. Electron diffraction coupled with aberration-corrected (AC) scanning transmission electron microscopy (STEM) is used to image, identify and confirm the structure producing double diffracted spots seen in electron diffraction patterns in twinned high-carbon steels. The experimental and simulated data show that regions comprising: (i) overlaps between a twin and the matrix or, (ii) overlapping twins, create projected structures that are similar to the ω phase observed in other metastable bcc systems. Thus, AC STEM is proficient in the definitive identification of twins in bcc high carbon steels or nanoscale phases in metastable bcc systems.
Controlled Hydrogenation Into Defective Interlayer Bismuth Oxychloride Via Vacancy Engineering, Dandan Cui, Kang Xu, Xingan Dong, Dongdong Lv, Fan Dong, Weichang Hao, Yi Du, Jun Chen
Controlled Hydrogenation Into Defective Interlayer Bismuth Oxychloride Via Vacancy Engineering, Dandan Cui, Kang Xu, Xingan Dong, Dongdong Lv, Fan Dong, Weichang Hao, Yi Du, Jun Chen
Australian Institute for Innovative Materials - Papers
Hydrogenation is an effective approach to improve the performance of photocatalysts within defect engineering methods. The mechanism of hydrogenation and synergetic effects between hydrogen atoms and local electronic structures, however, remain unclear due to the limits of available photocatalytic systems and technical barriers to observation and measurement. Here, we utilize oxygen vacancies as residential sites to host hydrogen atoms in a layered bismuth oxychloride material containing defects. It is confirmed theoretically and experimentally that the hydrogen atoms interact with the vacancies and surrounding atoms, which promotes the separati30on and transfer processes of photo-generated carriers via the resulting band structure. The …
A Wearable Sensor For The Detection Of Sodium And Potassium In Human Sweat During Exercise, Paolo Pirovano, Matthew Dorrian, Akshay Shinde, Andrew Donohoe, Aidan Brady, Niall Moyna, Gordon G. Wallace, Dermot Diamond, Margaret Mccaul
A Wearable Sensor For The Detection Of Sodium And Potassium In Human Sweat During Exercise, Paolo Pirovano, Matthew Dorrian, Akshay Shinde, Andrew Donohoe, Aidan Brady, Niall Moyna, Gordon G. Wallace, Dermot Diamond, Margaret Mccaul
Australian Institute for Innovative Materials - Papers
© 2020 The Author(s) The SwEatch platform, a wearable sensor for sampling and measuring the concentration of electrolytes in human sweat in real time, has been improved in order to allow the sensing of two analytes. The solid contact ion-sensitive electrodes (ISEs) for the detection of Na+ and K+ have been developed in two alternative formulations, containing either poly(3,4-ethylenedioxythiophene) (PEDOT) or poly(3-octylthiophene-2,5-diyl) (POT) as a conductive polymer transducing component. The solution-processable POT formulation simplifies the fabrication process, and sensor to sensor reproducibility has been improved via partial automation using an Opentron® automated pipetting robot. The resulting electrodes showed good sensitivity …
Nodal Ring Spin Gapless Semiconductor: New Member Of Spintronic Materials, Tie Yang, Zhenxiang Cheng, Xiaotian Wang, Xiaolin Wang
Nodal Ring Spin Gapless Semiconductor: New Member Of Spintronic Materials, Tie Yang, Zhenxiang Cheng, Xiaotian Wang, Xiaolin Wang
Australian Institute for Innovative Materials - Papers
Both spin gapless semiconductors (SGSs) and nodal ring states (NRSs) have aroused great scientific interest in recent years due to their unique electronic properties and high application potential. However, since their advent, all SGSs and NRSs have been predicted in independent materials. In this work, we proposed a novel type of material, nodal ring spin gapless semiconductor (NRSGS), which combines both states of the SGSs and NRSs. The synthesized material Mg2VO4 is selected as a potential candidate. Detailed band structure analysis reveals that there are gapless crossings in the spin-up direction, which are from multiple topological nodal rings located exactly …
Biomimetic Corneal Stroma Using Electro-Compacted Collagen, Zhi Chen, Xiao Liu, Jingjing You, Yihui Song, Eva Tomaskovic-Crook, Gerard L. Sutton, Jeremy Micah Crook, Gordon G. Wallace
Biomimetic Corneal Stroma Using Electro-Compacted Collagen, Zhi Chen, Xiao Liu, Jingjing You, Yihui Song, Eva Tomaskovic-Crook, Gerard L. Sutton, Jeremy Micah Crook, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
© 2020 Acta Materialia Inc. Engineering substantia propria (or stroma of cornea) that mimics the function and anatomy of natural tissue is vital for in vitro modelling and in vivo regeneration. There are, however, few examples of bioengineered biomimetic corneal stroma. Here we describe the construction of an orthogonally oriented 3D corneal stroma model (3D-CSM) using pure electro-compacted collagen (EC). EC films comprise aligned collagen fibrils and support primary human corneal stromal cells (hCSCs). Cell-laden constructs are analogous to the anatomical structure of native human cornea. The hCSCs are guided by the topographical cues provided by the aligned collagen fibrils …
Recent Progress On Understanding And Constructing Reliable Na Anode For Aprotic Na-O2 Batteries: A Mini Review, Shuo Zhao, Lin Li, Fujun Li, Shulei Chou
Recent Progress On Understanding And Constructing Reliable Na Anode For Aprotic Na-O2 Batteries: A Mini Review, Shuo Zhao, Lin Li, Fujun Li, Shulei Chou
Australian Institute for Innovative Materials - Papers
© 2020 The Authors Aprotic Na-O2 batteries attract increasing attention for the low charging/discharging overpotentials, high energy density, and low cost. Significant progress has been achieved in the battery system, but challenges remain in constructing reliable Na anodes. This review presents an overview of the fundamental understanding of Na anodes in aprotic Na-O2 batteries, including chemical reactivity of Na metal and dendrite formation mechanism. The constructing strategies are summarized as mechanical reinforcement of separators, electrolyte modifications, and electrode structure and material design. Perspectives are envisioned for the further development of durable Na anodes for aprotic Na-O2 batteries.
Coupling N2 And Co2 In H2o To Synthesize Urea Under Ambient Conditions, Chen Chen, Xiaorong Zhu, Xiaojian Wen, Yangyang Zhou, Ling Zhou, Hao Li, Li Tao, Qiling Li, Shiqian Du, Tingting Liu, Dafeng Yan, Chao Xie, Yuqin Zou, Yanyong Wang, Ru Chen, Jia Huo, Yafei Liu, Jun Cheng, Hui Su, Xu Zhao, Weiren Cheng, Qinghua Liu, Hongzhen Lin, Jun Luo, Jun Chen, Mingdong Dong, Kai Cheng, Conggang Li, Shuangyin Wang
Coupling N2 And Co2 In H2o To Synthesize Urea Under Ambient Conditions, Chen Chen, Xiaorong Zhu, Xiaojian Wen, Yangyang Zhou, Ling Zhou, Hao Li, Li Tao, Qiling Li, Shiqian Du, Tingting Liu, Dafeng Yan, Chao Xie, Yuqin Zou, Yanyong Wang, Ru Chen, Jia Huo, Yafei Liu, Jun Cheng, Hui Su, Xu Zhao, Weiren Cheng, Qinghua Liu, Hongzhen Lin, Jun Luo, Jun Chen, Mingdong Dong, Kai Cheng, Conggang Li, Shuangyin Wang
Australian Institute for Innovative Materials - Papers
© 2020, The Author(s), under exclusive licence to Springer Nature Limited. The use of nitrogen fertilizers has been estimated to have supported 27% of the world’s population over the past century. Urea (CO(NH2)2) is conventionally synthesized through two consecutive industrial processes, N2 + H2 → NH3 followed by NH3 + CO2 → urea. Both reactions operate under harsh conditions and consume more than 2% of the world’s energy. Urea synthesis consumes approximately 80% of the NH3 produced globally. Here we directly coupled N2 and CO2 in H2O to produce urea under ambient conditions. The process was carried out using an …
Ac Loss And Contact Resistance Of Different Cicc Cable Patterns: Experiments And Numerical Modeling, Anvar Valiyaparambil Abdulsalam, J Qin, Y Wu, T Bagni, A Devred, T Haugan, Md. Shahriar Al Hossain, C Zhou, Arend Nijhuis
Ac Loss And Contact Resistance Of Different Cicc Cable Patterns: Experiments And Numerical Modeling, Anvar Valiyaparambil Abdulsalam, J Qin, Y Wu, T Bagni, A Devred, T Haugan, Md. Shahriar Al Hossain, C Zhou, Arend Nijhuis
Australian Institute for Innovative Materials - Papers
© 2020 The Author(s) For upcoming nuclear fusion energy reactors, like the China Fusion Engineering Test Reactor (CFETR) and EU-DEMO, the superconducting Cable-In-Conduit Conductors (CICC) are in the design phase, and the operating conditions like electromagnetic forces can be higher than in previous devices like ITER. The prototype conductors for the Central Solenoid (CS) coils in the CFETR, for example, are designed to produce a peak field of 19.9 T and are expected to be made of high current density Nb3Sn strands. Investigations are also ongoing on the application of bismuth strontium calcium copper oxide (BSCCO) and MgB2 strands for …
3d Printing Of Cytocompatible Graphene/Alginate Scaffolds For Mimetic Tissue Constructs, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace
3d Printing Of Cytocompatible Graphene/Alginate Scaffolds For Mimetic Tissue Constructs, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
© Copyright © 2020 Li, Liu, Crook and Wallace. Tissue engineering, based on a combination of 3D printing, biomaterials blending and stem cell technology, offers the potential to establish customized, transplantable autologous implants using a patient‘s own cells. Graphene, as a two-dimensional (2D) version of carbon, has shown great potential for tissue engineering. Here, we describe a novel combination of graphene with 3D printed alginate (Alg)-based scaffolds for human adipose stem cell (ADSC) support and osteogenic induction. Alg printing was enabled through addition of gelatin (Gel) that was removed after printing, and the 3D structure was then coated with graphene …
Highly Efficient Co3o4/Co@Ncs Bifunctional Oxygen Electrocatalysts For Long Life Rechargeable Zn-Air Batteries, Neng Yu, Chang Wu, Wen Huang, You Chen, Da Ruan, Kai Bao, Hui Chen, Yi Zhang, Yusong Zhu, Qing Huang, Weihong Lai, Yunxiao Wang, Hong Liao, Shi Sun, Yu Wu, Jiazhao Wang
Highly Efficient Co3o4/Co@Ncs Bifunctional Oxygen Electrocatalysts For Long Life Rechargeable Zn-Air Batteries, Neng Yu, Chang Wu, Wen Huang, You Chen, Da Ruan, Kai Bao, Hui Chen, Yi Zhang, Yusong Zhu, Qing Huang, Weihong Lai, Yunxiao Wang, Hong Liao, Shi Sun, Yu Wu, Jiazhao Wang
Australian Institute for Innovative Materials - Papers
© 2020 Elsevier Ltd Rational design and synthesis of high-performance bifunctional oxygen electrocatalysts are in high demand for metal air batteries. Herein, Co3O4/Co nano-heterojunctions tailored in nitrogen-doped porous graphitized carbon frameworks (Co3O4/Co@NCs) are synthesized via annealing Co-based metal-organic-frameworks (Co-based MOFs). This structure for electrocatalysts with a combination of mixed metallic Co species and encapsulating porous graphitized carbon offers an efficient charge/mass transport environment. In addition, the Co3O4/Co nano-heterostructured interfaces serve as efficient reactive sites to enhance oxygen electrocatalysis. Furthermore, the strong binding forces between nanoparticles and carbon frameworks through Co–N covalent bonds prevent the loss of nanoparticles from the electrocatalysts, …
Tuning Interface Bridging Between Mose2 And Three-Dimensional Carbon Framework By Incorporation Of Moc Intermediate To Boost Lithium Storage Capability, Jing Chen, Yilin Luo, Wenchao Zhang, Yun Qiao, Xinxin Cao, Xuefang Xie, Haoshen Zhou, Anqiang Pan, Shuquan Liang
Tuning Interface Bridging Between Mose2 And Three-Dimensional Carbon Framework By Incorporation Of Moc Intermediate To Boost Lithium Storage Capability, Jing Chen, Yilin Luo, Wenchao Zhang, Yun Qiao, Xinxin Cao, Xuefang Xie, Haoshen Zhou, Anqiang Pan, Shuquan Liang
Australian Institute for Innovative Materials - Papers
© 2020, The Author(s). Highlights: MoSe2/MoC/C multiphase boundaries boost ionic transfer kinetics.MoSe2 (5–10 nm) with rich edge sites is uniformly coated in N-doped framework.The obtained MoSe2 nanodots achieved ultralong cycle performance in LIBs and high capacity retention in full cell. Abstract: Interface engineering has been widely explored to improve the electrochemical performances of composite electrodes, which governs the interface charge transfer, electron transportation, and structural stability. Herein, MoC is incorporated into MoSe2/C composite as an intermediate phase to alter the bridging between MoSe2- and nitrogen-doped three-dimensional (3D) carbon framework as MoSe2/MoC/N–C connection, which greatly improve the structural stability, electronic conductivity, …
Controllable S-Vacancies Of Monolayered Mo–S Nanocrystals For Highly Harvesting Lithium Storage, Linlin Fan, Shulai Lei, Hirbod Kheimeh, Longsheng Zhong, Alibek Kakimov, Jingjing Wang, Jun Chen, Dezheng Liu, Liang Huang, Junhua Hu, Liangxu Lin, Xifei Li
Controllable S-Vacancies Of Monolayered Mo–S Nanocrystals For Highly Harvesting Lithium Storage, Linlin Fan, Shulai Lei, Hirbod Kheimeh, Longsheng Zhong, Alibek Kakimov, Jingjing Wang, Jun Chen, Dezheng Liu, Liang Huang, Junhua Hu, Liangxu Lin, Xifei Li
Australian Institute for Innovative Materials - Papers
© 2020 Elsevier Ltd Two-dimensional (2D) monolayers are promising in electrochemical energy storages (EES), while their performance is still far below than that can be exploited. Understanding 2D monolayers, particularly thin nanocrystals (NCs) with and without surface modifications in EES would be interesting. This work demonstrates how monolayered molybdenum sulfide (Mo–S) NCs with S vacancies perform as a promising anode material to improve many aspects of lithium-ion batteries (LIBs), by utilizing their metallicity, multi-layer adsorption, minimized self-discharge and fast 2D capacitive processes. By way of examples, we demonstrate an increasing trend of the energy capacity and improved lithium diffusion kinetics …
Alkali-Metal Sulfide As Cathodes Toward Safe And High-Capacity Metal (M = Li, Na, K) Sulfur Batteries, Huiling Yang, Binwei Zhang, Yunxiao Wang, Konstantin K. Konstantinov, Hua-Kun Liu, Shi Xue Dou
Alkali-Metal Sulfide As Cathodes Toward Safe And High-Capacity Metal (M = Li, Na, K) Sulfur Batteries, Huiling Yang, Binwei Zhang, Yunxiao Wang, Konstantin K. Konstantinov, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
© 2020 Wiley-VCH GmbH Rechargeable alkali-metal–sulfur (M–S) batteries, because of their high energy density and low cost, have been recognized as one of the most promising next-generation energy storage technologies. Nevertheless, the dissolution of metal polysulfides in organic liquid electrolytes and safety issues related to the metal anodes are greatly hindering the development of the M–S batteries. Alkali-metal sulfides (M2Sx) are emerging as cathode materials, which can pair with various safe nonalkali-metal anodes, such as silicon and tin. As a result, the combined M2Sx cathode-based M–S batteries can achieve high capacity as well as safety, thereby providing a more feasible …
Ultrafast Electron Transport In Metallic Antiferromagnetic Mn2au Thin Films Probed By Terahertz Spectroscopy, Zuanming Jin, Shunyi Ruan, Xiaofeng Zhou, Bangju Song, Cheng Song, Xianzhe Chen, Feng Pan, Yan Peng, C Zhang, Guohong Ma, Yiming Zhu, Songlin Zhuang
Ultrafast Electron Transport In Metallic Antiferromagnetic Mn2au Thin Films Probed By Terahertz Spectroscopy, Zuanming Jin, Shunyi Ruan, Xiaofeng Zhou, Bangju Song, Cheng Song, Xianzhe Chen, Feng Pan, Yan Peng, C Zhang, Guohong Ma, Yiming Zhu, Songlin Zhuang
Australian Institute for Innovative Materials - Papers
The ultrafast electron transport is central to the requirement of all-electrically controlled spintronics in metallic collinear antiferromagnetic (AFM) Mn2Au thin films within the terahertz (THz) range. Here we use the THz time-domain spectroscopy to measure the conductivity spectra of Mn2Au thin films with different thicknesses and temperatures. We demonstrate an onset of carrier localization in Mn2Au with decreasing the film thickness from 15 to 5 nm. By using optical pump-THz probe spectroscopy, we found the surface trapping states in the thinnest Mn2Au film limit its photoconductivity significantly. The DC conductivity and scattering time become larger and longer with decreasing temperature …
3d Printed Soft Pneumatic Bending Sensing Chambers For Bilateral And Remote Control Of Soft Robotic Systems, Charbel Tawk, Marc In Het Panhuis, Geoffrey M. Spinks, Gursel Alici
3d Printed Soft Pneumatic Bending Sensing Chambers For Bilateral And Remote Control Of Soft Robotic Systems, Charbel Tawk, Marc In Het Panhuis, Geoffrey M. Spinks, Gursel Alici
Australian Institute for Innovative Materials - Papers
© 2020 IEEE. This work reports on soft pneumatic bending sensing chambers that are directly 3D printed without requiring any support material and postprocessing using a low-cost and open-source fused deposition modeling (FDM) 3D printer and a commercially available soft thermoplastic polyurethane (TPU). These bending sensing chambers have multiple advantages including very fast response to any change in their internal volume, linearity, negligible hysteresis, repeatability, reliability, stability over time, long lifetime and very low power consumption. The performance of these soft sensing chambers is accurately predicted and optimized using finite element modeling (FEM) and a hyperelastic material model for the …
Topographical And Compositional Engineering Of Core-Shell Ni@Pt Orr Electro-Catalysts, Gerard Leteba, David R. G Mitchell, Pieter Levecque, Eric Van Steen, Candace Lang
Topographical And Compositional Engineering Of Core-Shell Ni@Pt Orr Electro-Catalysts, Gerard Leteba, David R. G Mitchell, Pieter Levecque, Eric Van Steen, Candace Lang
Australian Institute for Innovative Materials - Papers
© 2020 The Royal Society of Chemistry. Complex faceted geometries and compositional anisotropy in alloy nanoparticles (NPs) can enhance catalytic performance. We report on the preparation of binary PtNi NPs via a co-thermolytic approach in which we optimize the synthesis variables, which results in significantly improved catalytic performance. We used scanning transmission electron microscopy to characterise the range of morphologies produced, which included spherical and concave cuboidal core-shell structures. Electrocatalytic activity was evaluated using a rotating disc electrode (1600 rpm) in 0.1 M HClO4; the electrocatalytic performance of these Ni@Pt NPs showed significant (∼11-fold) improvement compared to a commercial Pt/C …
Highly Flexible Reduced Graphene Oxide@Polypyrrole-Polyethylene Glycol Foam For Supercapacitors, Chaoyue Cai, Jialong Fu, Chengyan Zhang, Cheng Wang, Rui Sun, Shufang Guo, Fan Zhang, Mingyan Wang, Yuqing Liu, Jun Chen
Highly Flexible Reduced Graphene Oxide@Polypyrrole-Polyethylene Glycol Foam For Supercapacitors, Chaoyue Cai, Jialong Fu, Chengyan Zhang, Cheng Wang, Rui Sun, Shufang Guo, Fan Zhang, Mingyan Wang, Yuqing Liu, Jun Chen
Australian Institute for Innovative Materials - Papers
© 2020 The Royal Society of Chemistry. A flexible and free-standing 3D reduced graphene oxide@polypyrrole-polyethylene glycol (RGO@PPy-PEG) foam was developed for wearable supercapacitors. The device was fabricated sequentially, beginning with the electrodeposition of PPy in the presence of a PEG-borate on a sacrificial Ni foam template, followed by a subsequent GO wrapping and chemical reduction process. The 3D RGO@PPy-PEG foam electrode showed excellent electrochemical properties with a large specific capacitance of 415 F g-1 and excellent long-term stability (96% capacitance retention after 8000 charge-discharge cycles) in a three electrode configuration. An assembled (two-electrode configuration) symmetric supercapacitor using RGO@PPy-PEG electrodes exhibited …
Improved Na Storage And Coulombic Efficiency In Tip2o7@C Microflowers For Sodium Ion Batteries, Jun Pan, Nana Wang, Lili Li, Feng Zhang, Zhenjie Cheng, Yanlu Li, Jian Yang, Yitai Qian
Improved Na Storage And Coulombic Efficiency In Tip2o7@C Microflowers For Sodium Ion Batteries, Jun Pan, Nana Wang, Lili Li, Feng Zhang, Zhenjie Cheng, Yanlu Li, Jian Yang, Yitai Qian
Australian Institute for Innovative Materials - Papers
© 2020, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature. Ti-based anode materials in sodium ion batteries have attracted extensive interests due to its abundant resources, low toxicity, easy synthesis and long cycle life. However, low Coulombic efficiency and limited specific capacity affect their applications. Here, cubic-phase TiP2O7 is examined as anode materials, using in-situ/ex-situ characterization techniques. It is concluded that the redox reactions of Ti4+/Ti3+ and Ti3+/Ti0 consecutively occur during the discharge/charge processes, both of which are highly reversible. These reactions make the specific capacity of TiP2O7 even higher than the case of TiO2 that only …
Constructing Phase Boundary In Agnbo3 Antiferroelectrics: Pathway Simultaneously Achieving High Energy Density And Efficiency, Nengneng Luo, Kai Han, Matthew Cabral, Xiaozhou Liao, Shujun Zhang, Changzhong Liao, Guangzu Zhang, Xiyong Chen, Qin Feng, Jing Li, Yuezhou Wei
Constructing Phase Boundary In Agnbo3 Antiferroelectrics: Pathway Simultaneously Achieving High Energy Density And Efficiency, Nengneng Luo, Kai Han, Matthew Cabral, Xiaozhou Liao, Shujun Zhang, Changzhong Liao, Guangzu Zhang, Xiyong Chen, Qin Feng, Jing Li, Yuezhou Wei
Australian Institute for Innovative Materials - Papers
© 2020, The Author(s). Dielectric capacitors with high energy storage density (Wrec) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high Wrec of 6.3 J cm-3 with η of 90% can be simultaneously achieved by constructing a room temperature M2–M3 phase boundary in (1-x)AgNbO3-xAgTaO3 solid solution system. The designed material exhibits high energy storage stability over a wide temperature range of 20–150 °C and excellent cycling reliability up to 106 cycles. All …
Fabrication Of Heterostructured Uio-66-Nh2 /Cnts With Enhanced Activity And Selectivity Over Photocatalytic Co2 Reduction, Xiaojun Wang, Guorui Yang, Guodong Chai, Muhammad Nasir, Silan Wang, Xing Zheng, Caiyun Wang, Wei Yan
Fabrication Of Heterostructured Uio-66-Nh2 /Cnts With Enhanced Activity And Selectivity Over Photocatalytic Co2 Reduction, Xiaojun Wang, Guorui Yang, Guodong Chai, Muhammad Nasir, Silan Wang, Xing Zheng, Caiyun Wang, Wei Yan
Australian Institute for Innovative Materials - Papers
© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that …
Tunable Magnetic Anisotropy And Dzyaloshinskii-Moriya Interaction In An Ultrathin Van Der Waals Fe3gete2/In2se3 Heterostructure, Dong Chen, Wei Sun, Hang Li, Jian Li Wang, Yuanxu Wang
Tunable Magnetic Anisotropy And Dzyaloshinskii-Moriya Interaction In An Ultrathin Van Der Waals Fe3gete2/In2se3 Heterostructure, Dong Chen, Wei Sun, Hang Li, Jian Li Wang, Yuanxu Wang
Australian Institute for Innovative Materials - Papers
© Copyright © 2020 Chen, Sun, Li, Wang and Wang. The promise of future spintronic devices with nanoscale dimension, high-density, and low-energy consumption motivates the search for van der Waals heterostructure that stabilize topologically protected whirling spin textures such as magnetic skyrmions and domain walls. To translate these compelling features into practical devices, a key challenge lies in achieving effective manipulation of the magnetic anisotropy energy and the Dzyaloshinskii-Moriya (DM) interaction, the two key parameters that determine skyrmions. Through the first-principles calculation, we demonstrate that the polarization-induced broken inversion symmetry in the two-dimensional Fe3GeTe2/In2Se3 multiferroic heterostructure does cause an interfacial …
Lead-Free Antiferroelectric Agnbo3: Phase Transitions And Structure Engineering For Dielectric Energy Storage Applications, Jing Gao, Qiang Li, Shujun Zhang, Jing-Feng Li
Lead-Free Antiferroelectric Agnbo3: Phase Transitions And Structure Engineering For Dielectric Energy Storage Applications, Jing Gao, Qiang Li, Shujun Zhang, Jing-Feng Li
Australian Institute for Innovative Materials - Papers
© 2020 Author(s). The development of electronic materials for storing electrical energy is a thriving research field, where the materials used in batteries, supercapacitors, dielectric capacitors have attracted extensive interest in last decades. The dielectric capacitors showing unique characteristics such as high power density and large charge/discharge rate have been actively studied, where the antiferroelectrics demonstrate great potentials for dielectric energy storage applications by storing and releasing energy upon a reversible electric-field induced antiferroelectric-ferroelectric phase transition. Recently, lead-free antiferroelectric AgNbO3 has emerged as a promising candidate to substitute conventional lead-based antiferroelectrics (such as PbZrO3) in energy storage applications. The phase …
Promoted Photocharge Separation In 2d Lateral Epitaxial Heterostructure For Visible-Light-Driven Co2 Photoreduction, Li Wang, Xue Zhao, Dongdong Lv, Chuangwei Liu, Weihong Lai, Chunyi Sun, Zhongmin Su, Xun Xu, Weichang Hao, Shi Xue Dou, Yi Du
Promoted Photocharge Separation In 2d Lateral Epitaxial Heterostructure For Visible-Light-Driven Co2 Photoreduction, Li Wang, Xue Zhao, Dongdong Lv, Chuangwei Liu, Weihong Lai, Chunyi Sun, Zhongmin Su, Xun Xu, Weichang Hao, Shi Xue Dou, Yi Du
Australian Institute for Innovative Materials - Papers
Photocarrier recombination remains a big barrier for the improvement of solar energy conversion efficiency. For 2D materials, construction of heterostructures represents an efficient strategy to promote photoexcited carrier separation via an internal electric field at the heterointerface. However, due to the difficulty in seeking two components with suitable crystal lattice mismatch, most of the current 2D heterostructures are vertical heterostructures and the exploration of 2D lateral heterostructures is scarce and limited. Here, lateral epitaxial heterostructures of BiOCl @ Bi2O3 at the atomic level are fabricated via sonicating-assisted etching of Cl in BiOCl. This unique lateral heterostructure expedites …
Simple Preparation Of Nitrogen-Doped Tio2 And Its Performance In Selective Oxidation Of Benzyl Alcohol And Benzylamine Under Visible Light, Mattawan Japa, Doldet Tantraviwat, Witchaya Phasayavan, Andrew Nattestad, Jun Chen, Burapat Inceesungvorn
Simple Preparation Of Nitrogen-Doped Tio2 And Its Performance In Selective Oxidation Of Benzyl Alcohol And Benzylamine Under Visible Light, Mattawan Japa, Doldet Tantraviwat, Witchaya Phasayavan, Andrew Nattestad, Jun Chen, Burapat Inceesungvorn
Australian Institute for Innovative Materials - Papers
N-doped TiO2, denoted as T_400, was prepared simply by the facile thermal hydrolysis of TiOSO4 using NH4OH as both a precipitating agent and a nitrogen source. Compared to TiO2 without nitrogen doping, T_400 provides superior photocatalytic activity toward the selective oxidation of benzyl alcohol and benzylamine under visible light irradiation, with > 85 % conversion and > 95 % selectivity to benzaldehyde and N-benzylidenebenzylamine products, respectively. The increased photoactivity of T_400 is ascribed to enhanced visible-light absorption and efficient photogenerated charge transfer and separation as supported by UV–vis DRS, photoelectrochemical and VB-XPS results. The catalyst can …
Nanofibers-Based Piezoelectric Energy Harvester For Self-Powered Wearable Technologies, Fatemeh Mokhtari, Mahnaz Shamshirsaz, Masoud Latifi, Javad Foroughi
Nanofibers-Based Piezoelectric Energy Harvester For Self-Powered Wearable Technologies, Fatemeh Mokhtari, Mahnaz Shamshirsaz, Masoud Latifi, Javad Foroughi
Australian Institute for Innovative Materials - Papers
The demands for wearable technologies continue to grow and novel approaches for powering these devices are being enabled by the advent of new energy materials and novel manufacturing strategies. In addition, decreasing the energy consumption of portable electronic devices has created a huge demand for the development of cost-effective and environment friendly alternate energy sources. Energy harvesting materials including piezoelectric polymer with its special properties make this demand possible. Herein, we develop a flexible and lightweight nanogenerator package based on polyvinyledene fluoride (PVDF)/LiCl electrospun nanofibers. The piezoelectric performance of the developed nanogenator is investigated to evaluate effect of the thickness …
Biochar-Based Fertilizer: Supercharging Root Membrane Potential And Biomass Yield Of Rice, Jinkiat Chew, Longlong Zhu, Shaun Nielsen, Ellen Graber, David R. G Mitchell, Josip Horvat, Mohanad Hazim Mohammed, Minglong Liu, Lukas Van Zwieten, Scott Donne, Paul Munroe, Sarasadat Taherymoosavi, Ben Pace, Aditya Rawal, James Hook, Christopher Marjo, Donald Thomas, Genxing Pan, Lianqing Li, Rongjun Bian, Anna Mcbeath, Michael I. Bird, Torsten Thomas, Olivier Husson, Zakaria M. Solaiman, Stephen D. Joseph, Xiaorong Fan
Biochar-Based Fertilizer: Supercharging Root Membrane Potential And Biomass Yield Of Rice, Jinkiat Chew, Longlong Zhu, Shaun Nielsen, Ellen Graber, David R. G Mitchell, Josip Horvat, Mohanad Hazim Mohammed, Minglong Liu, Lukas Van Zwieten, Scott Donne, Paul Munroe, Sarasadat Taherymoosavi, Ben Pace, Aditya Rawal, James Hook, Christopher Marjo, Donald Thomas, Genxing Pan, Lianqing Li, Rongjun Bian, Anna Mcbeath, Michael I. Bird, Torsten Thomas, Olivier Husson, Zakaria M. Solaiman, Stephen D. Joseph, Xiaorong Fan
Australian Institute for Innovative Materials - Papers
2020 The Authors Biochar-based compound fertilizers (BCF) and amendments have proven to enhance crop yields and modify soil properties (pH, nutrients, organic matter, structure etc.) and are now in commercial production in China. While there is a good understanding of the changes in soil properties following biochar addition, the interactions within the rhizosphere remain largely unstudied, with benefits to yield observed beyond the changes in soil properties alone. We investigated the rhizosphere interactions following the addition of an activated wheat straw BCF at an application rates of 0.25% (g·g−1 soil), which could potentially explain the increase of plant biomass (by …
A High-Kinetics Sulfur Cathode With A Highly Efficient Mechanism For Superior Room-Temperature Na-S Batteries, Zichao Yan, Yaru Liang, Jin Xiao, Weihong Lai, Wanlin Wang, Qingbing Xia, Yunxiao Wang, Qinfen Gu, Huanming Lu, Shulei Chou, Yong Liu, Hua-Kun Liu, Shi Xue Dou
A High-Kinetics Sulfur Cathode With A Highly Efficient Mechanism For Superior Room-Temperature Na-S Batteries, Zichao Yan, Yaru Liang, Jin Xiao, Weihong Lai, Wanlin Wang, Qingbing Xia, Yunxiao Wang, Qinfen Gu, Huanming Lu, Shulei Chou, Yong Liu, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Applications of room-temperature-sodium sulfur (RT-Na/S) batteries are currently impeded by the insulating nature of sulfur, the slow redox kinetics of sulfur with sodium, and the dissolution and migration of sodium polysulfides. Herein, a novel micrometer-sized hierarchical S cathode supported by FeS2 electrocatalyst, which is grown in situ in well-confined carbon nanocage assemblies, is presented. The hierarchical carbon matrix can provide multiple physical entrapment to polysulfides, and the FeS2 nanograins exhibit a low Na-ion diffusion barrier, strong binding energy, and high affinity for sodium polysulfides. Their combination makes it an ideal sulfur host …
A Hybrid Electrochemical Energy Storage Device Using Sustainable Electrode Materials, Manickam Minakshi, David R. G Mitchell, Robert Jones, Nimai Pramanik, Annelise Jean-Fulcrand, Georg Garnweitner
A Hybrid Electrochemical Energy Storage Device Using Sustainable Electrode Materials, Manickam Minakshi, David R. G Mitchell, Robert Jones, Nimai Pramanik, Annelise Jean-Fulcrand, Georg Garnweitner
Australian Institute for Innovative Materials - Papers
2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim A new electrochemical energy storage device, comprising a faradaic rechargeable pseudo-capacitor type electrode with a non-faradaic rechargeable capacitor electrode, is successfully developed for potential applications in smart electric grids. Mapping new electrodes possessing both high energy and power densities as well as long cycle life is vital for the sustainable energy management. In this work, we present a new approach to design electrodes, fabricated from sustainable resources by hybridizing calcined eggshell capacitor anode with a mixed binary metal oxide pseudo-capacitor cathode. Calcium carbonate (calcite), obtained from the biowaste-derived eggshell, is an effective …
Reversible Structural Evolution Of Sodium-Rich Rhombohedral Prussian Blue For Sodium-Ion Batteries, Wanlin Wang, Yong Gang, Zhe Hu, Zichao Yan, Weijie Li, Yongcheng Li, Qinfen Gu, Zhixing Wang, Shulei Chou, Hua-Kun Liu, Shi Xue Dou
Reversible Structural Evolution Of Sodium-Rich Rhombohedral Prussian Blue For Sodium-Ion Batteries, Wanlin Wang, Yong Gang, Zhe Hu, Zichao Yan, Weijie Li, Yongcheng Li, Qinfen Gu, Zhixing Wang, Shulei Chou, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
2020, The Author(s). Iron-based Prussian blue analogs are promising low-cost and easily prepared cathode materials for sodium-ion batteries. Their materials quality and electrochemical performance are heavily reliant on the precipitation process. Here we report a controllable precipitation method to synthesize high-performance Prussian blue for sodium-ion storage. Characterization of the nucleation and evolution processes of the highly crystalline Prussian blue microcubes reveals a rhombohedral structure that exhibits high initial Coulombic efficiency, excellent rate performance, and cycling properties. The phase transitions in the as-obtained material are investigated by synchrotron in situ powder X-ray diffraction, which shows highly reversible structural transformations between rhombohedral, …
Light Soaking Effect Driven In Porphyrin Dye-Sensitized Solar Cells Using 1d Tio2 Nanotube Photoanodes, Jung-Ho Yun, Attila J. Mozer, Pawel W. Wagner, David Offier, Rose Amal, Yun Hau Ng
Light Soaking Effect Driven In Porphyrin Dye-Sensitized Solar Cells Using 1d Tio2 Nanotube Photoanodes, Jung-Ho Yun, Attila J. Mozer, Pawel W. Wagner, David Offier, Rose Amal, Yun Hau Ng
Australian Institute for Innovative Materials - Papers
© 2020 Light soaking (LS) effect on porphyrin (GD2) dye-sensitized solar cells (DSSCs) using well-ordered TiO2 nanotube (TNT) photoanodes was studied with different lengths of TNTs and LS treatment time. The TNT array possessing longer length and larger tube diameter had improved photoelectrochemical (PEC) property by generating larger photocurrent, and besides provided a larger surface area to yield more dye loading. The LS effect on GD2-applied DSSCs using TNT photoanodes was triggered off in the first 5 min of the LS treatment, and gradually increased during 60 min LS treatment. The improved PEC property and dye loading by longer TNT …