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Articles 1 - 30 of 183
Full-Text Articles in Physical Sciences and Mathematics
One Story, Told Week By Week: Episodic Podcast Storytelling And The Habitat, Charlotte De Beauvoir
One Story, Told Week By Week: Episodic Podcast Storytelling And The Habitat, Charlotte De Beauvoir
RadioDoc Review
The rise and success of podcasting introduced episodic storytelling in the world of non-fiction sound narrative. Delivering a story in different entries is very different from producing a one-off piece. What concrete implications does this have for the narrative? And what keeps an audience listening to a podcast, episode through episode? This article offers some answers to these questions via a case study of The Habitat, a 2018 podcast by the American network Gimlet.
Calcined Chicken Eggshell Electrode For Battery And Supercapacitor Applications, Manickam Minakshi, Stephen Higley, Christian Baur, David R. G Mitchell, Robert Jones, Maximilian Fichtner
Calcined Chicken Eggshell Electrode For Battery And Supercapacitor Applications, Manickam Minakshi, Stephen Higley, Christian Baur, David R. G Mitchell, Robert Jones, Maximilian Fichtner
Australian Institute for Innovative Materials - Papers
Biowaste eggshell can be used as a cathode while in its calcined form and it is found to be suitable as an anode in an electrochemical cell. This not only enables energy to be stored reversibly but also achieves waste management and sustainability goals by redirecting material away from landfill. Biowaste eggshell comprises 94% calcium carbonate (CaCO3; calcite), an attractive divalent ion source as a viable option for energy storage. X-ray diffraction and electron microscopy coupled with energy dispersive analyses of the calcined (thermally decomposed) biowaste eggshell show that CaO has been formed and the reaction is topotactic. Field emission …
Tunable Conducting Polymers: Toward Sustainable And Versatile Batteries, Xiaoteng Jia, Yu Ge, Liang Shao, Caiyun Wang, Gordon G. Wallace
Tunable Conducting Polymers: Toward Sustainable And Versatile Batteries, Xiaoteng Jia, Yu Ge, Liang Shao, Caiyun Wang, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Rapid growth of smart electronics and implantable medical devices markets has driven the development of next-generation sustainable, flexible, or implantable batteries. Conducting polymers with unique mechanical and electronic properties offer new possibilities and have attracted great attention. In this review, we discuss approaches used to tune conducting polymers at the molecular level for designated properties and applications such as improved electrochemical performance, and we discuss approaches used to tune conducting polymers at the molecular level to enhance selected properties for applications such as lithium/sodium ion batteries, biodegradable electrodes or enhanced solution processability for advanced manufacture of such structures. We provide …
Computer-Aided Manufacturing And Focused Ion Beam Technology Enable Machining Of Complex Micro- And Nano-Structures, Frank Niessen, Mitchell John Bromley Nancarrow
Computer-Aided Manufacturing And Focused Ion Beam Technology Enable Machining Of Complex Micro- And Nano-Structures, Frank Niessen, Mitchell John Bromley Nancarrow
Australian Institute for Innovative Materials - Papers
We present a novel framework for the fabrication of geometrically complex structures at the micro- and nano-scale which relies on the synergy of integrated computer-aided design and manufacturing systems (CAD/CAM) and focused ion beam (FIB) technology in a scanning electron microscope. Here we utilise industry standard G-code syntax, for the first time, to FIB machining by designing geometries with CAD, defining machining strategies and exporting G-codes with CAM and generating a coordinate list-based beam path by using a custom-built interpreter program. This allows the fabrication of complex structures from CAD models using syntax which is readily understood in the general …
Zn-Doped Cu(100) Facet With Efficient Catalytic Ability For The Co2 Electroreduction To Ethylene, Yuefeng Zhang, Yong Zhao, Caiyun Wang, Zengxi Wei, Junliang Yang, Jianmin Ma
Zn-Doped Cu(100) Facet With Efficient Catalytic Ability For The Co2 Electroreduction To Ethylene, Yuefeng Zhang, Yong Zhao, Caiyun Wang, Zengxi Wei, Junliang Yang, Jianmin Ma
Australian Institute for Innovative Materials - Papers
Electrochemically converting CO2 into fuels and chemicals is an appealing strategy to create energy rich products. The highly demanded product ethylene has been preferably produced on Cu-based catalysts with abundant exposed Cu(100) facets. However, the performance is still limited by the large energy barrier for the C-C dimerization. Here, to lower the energy barrier, we tailor the electronic structure of Cu(100) by doping a series of transition metals using the density functional theory (DFT) method. The zinc-doped Cu(100) surface has shown a superior catalytic performance. Mechanistic study further reveals that doping with Zn alters the electronic structure around Cu, adjusts …
Niobium-Titanium (Nb-Ti) Superconducting Joints For Persistent-Mode Operation, Dipakkumar Patel, Su Hun Kim, Wenbin Qiu, Minoru Maeda, Akiyoshi Matsumoto, Gen Nishijima, Hiroaki Kumakura, Seyong Choi, Jung Ho Kim
Niobium-Titanium (Nb-Ti) Superconducting Joints For Persistent-Mode Operation, Dipakkumar Patel, Su Hun Kim, Wenbin Qiu, Minoru Maeda, Akiyoshi Matsumoto, Gen Nishijima, Hiroaki Kumakura, Seyong Choi, Jung Ho Kim
Australian Institute for Innovative Materials - Papers
Superconducting joints are essential for persistent-mode operation in a superconducting magnet system to produce an ultra-stable magnetic field. Herein, we report rationally designed niobium-titanium (Nb-Ti) superconducting joints and their evaluation results in detail. For practical applications, superconducting joints were fabricated by using a solder matrix replacement method with two types of lead-bismuth (Pb-Bi) solder, including Pb42Bi58 as a new composition. All the joints attained a critical current of >200 A below 1.43 T at 4.2 K. Our optimized superconducting joining method was tested in a closed-loop coil, obtaining a total circuit resistance of 3.25 x 10-14 Ω at 4.2 K …
Recent Advances In Isolated Single-Atom Catalysts For Zinc Air Batteries: A Focus Review, Weimin Zhang, Yuqing Liu, Lipeng Zhang, Jun Chen
Recent Advances In Isolated Single-Atom Catalysts For Zinc Air Batteries: A Focus Review, Weimin Zhang, Yuqing Liu, Lipeng Zhang, Jun Chen
Australian Institute for Innovative Materials - Papers
Recently, zinc-air batteries (ZABs) have been receiving attention due to their theoretically high energy density, excellent safety, and the abundance of zinc resources. Typically, the performance of the zinc air batteries is determined by two catalytic reactions on the cathode-the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). Therefore, intensive effort has been devoted to explore high performance electrocatalysts with desired morphology, size, and composition. Among them, single-atom catalysts (SACs) have emerged as attractive and unique systems because of their high electrocatalytic activity, good durability, and 100% active atom utilization. In this review, we mainly focus on the …
Facile Development Of A Fiber-Based Electrode For Highly Selective And Sensitive Detection Of Dopamine, Syamak Farajikhah, Peter C. Innis, Brett Paull, Gordon G. Wallace, Alexander R. Harris
Facile Development Of A Fiber-Based Electrode For Highly Selective And Sensitive Detection Of Dopamine, Syamak Farajikhah, Peter C. Innis, Brett Paull, Gordon G. Wallace, Alexander R. Harris
Australian Institute for Innovative Materials - Papers
A facile one-step method was used to create a selective and sensitive electrode for dopamine (DA) detection based upon a stainless steel (SS) filament substrate and reduced graphene oxide (rGO). The electrode successfully and selectively detects DA in the presence of uric acid and ascorbic acid without the need of a Nafion coating. The proposed electrode is easy to fabricate, low-cost, flexible and strong. The rGO-SS electrode could also be incorporated into a 3-dimensional braided structure enabling DA detection in a two-electrode fibre system. The sensor is an excellent candidate for production of affordable, robust and flexible wearable and portable …
Nickel Sulfide Nanocrystals On Nitrogen-Doped Porous Carbon Nanotubes With High-Efficiency Electrocatalysis For Room-Temperature Sodium-Sulfur Batteries, Zichao Yan, Jin Xiao, Weihong Lai, Li Wang, Florian Arno Gebert, Yunxiao Wang, Qinfen Gu, Hui Liu, Shulei Chou, Hua-Kun Liu, Shi Xue Dou
Nickel Sulfide Nanocrystals On Nitrogen-Doped Porous Carbon Nanotubes With High-Efficiency Electrocatalysis For Room-Temperature Sodium-Sulfur Batteries, Zichao Yan, Jin Xiao, Weihong Lai, Li Wang, Florian Arno Gebert, Yunxiao Wang, Qinfen Gu, Hui Liu, Shulei Chou, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Polysulfide dissolution and slow electrochemical kinetics of conversion reactions lead to low utilization of sulfur cathodes that inhibits further development of room-temperature sodium-sulfur batteries. Here we report a multifunctional sulfur host, NiS2 nanocrystals implanted in nitrogen-doped porous carbon nanotubes, which is rationally designed to achieve high polysulfide immobilization and conversion. Attributable to the synergetic effect of physical confinement and chemical bonding, the high electronic conductivity of the matrix, closed porous structure, and polarized additives of the multifunctional sulfur host effectively immobilize polysulfides. Significantly, the electrocatalytic behaviors of the Lewis base matrix and the NiS2 component are clearly evidenced by operando …
Fluorescent Carbon- And Oxygen-Doped Hexagonal Boron Nitride Powders As Printing Ink For Anticounterfeit Applications, Feng Liu, Andrew Nattestad, Sina Naficy, Rui Han, Gilberto Cosillas, Alexander Angeloski, Xudong Sun, Zhenguo Huang
Fluorescent Carbon- And Oxygen-Doped Hexagonal Boron Nitride Powders As Printing Ink For Anticounterfeit Applications, Feng Liu, Andrew Nattestad, Sina Naficy, Rui Han, Gilberto Cosillas, Alexander Angeloski, Xudong Sun, Zhenguo Huang
Australian Institute for Innovative Materials - Papers
Increasing demands for optical anticounterfeiting technology require the development of versatile luminescent materials with tunable photoluminescence properties. Herein, a number of fluorescent carbon- and oxygen-doped hexagonal boron nitride (denoted as BCNO) phosphors are found to offer a such high-tech anticounterfeiting solution. These multicolor BCNO powders, developed in a two-step process with controlled annealing and oxidation, feature rod-like particle shape, with varied luminescence properties. Studies of the optical properties of BCNO, along with other characterization, provide insight into this underexplored material. Anticounterfeiting applications are demonstrated with printed patterns which are indistinguishable to the naked eye under visible light but become highly …
Designed Patterning Of Mesoporous Metal Films Based On Electrochemical Micelle Assembly Combined With Lithographical Techniques, Hyunsoo Lim, Jeonghun Kim, Kenya Kani, Mostafa Kamal Masud, Hyeongyu Park, Minjun Kim, Saad Alsheri, Tansir Ahamad, Norah Alhokbany, Jongbeom Na, Victor Malgras, Yoshio Bando, Yusuke Yamauchi
Designed Patterning Of Mesoporous Metal Films Based On Electrochemical Micelle Assembly Combined With Lithographical Techniques, Hyunsoo Lim, Jeonghun Kim, Kenya Kani, Mostafa Kamal Masud, Hyeongyu Park, Minjun Kim, Saad Alsheri, Tansir Ahamad, Norah Alhokbany, Jongbeom Na, Victor Malgras, Yoshio Bando, Yusuke Yamauchi
Australian Institute for Innovative Materials - Papers
Mesoporous noble metals and their patterning techniques for obtaining unique patterned structures are highly attractive for electrocatalysis, photocatalysis, and optoelectronics device applications owing to their expedient properties such as high level of exposed active locations, cascade electrocatalytic sites, and large surface area. However, patterning techniques for mesoporous substrates are still limited to metal oxide and silica films, although there is growing demand for developing techniques related to patterning mesoporous metals. In this study, the first demonstration of mesoporous metal films on patterned gold (Au) substrates, prefabricated using photolithographic techniques, is reported. First, different growth rates of mesoporous Au metal films …
Coupling Topological Insulator Snsb2te4 Nanodots With Highly Doped Graphene For High-Rate Energy Storage, Zhibin Wu, Gemeng Liang, Wei Kong Pang, Tengfei Zhou, Zhenxiang Cheng, Wenchao Zhang, Ye Liu, Bernt Johannessen, Zaiping Guo
Coupling Topological Insulator Snsb2te4 Nanodots With Highly Doped Graphene For High-Rate Energy Storage, Zhibin Wu, Gemeng Liang, Wei Kong Pang, Tengfei Zhou, Zhenxiang Cheng, Wenchao Zhang, Ye Liu, Bernt Johannessen, Zaiping Guo
Australian Institute for Innovative Materials - Papers
Topological insulators have spurred worldwide interest, but their advantageous properties have scarcely been explored in terms of electrochemical energy storage, and their high-rate capability and long-term cycling stability still remain a significant challenge to harvest. p-Type topological insulator SnSb2Te4 nanodots anchoring on few-layered graphene (SnSb2Te4/G) are synthesized as a stable anode for high-rate lithium-ion batteries and potassium-ion batteries through a ball-milling method. These SnSb2Te4/G composite electrodes show ultralong cycle lifespan (478 mAh g−1 at 1 A g−1 after 1000 cycles) and excellent rate capability (remaining 373 mAh g−1 even at 10 A g−1) in Li-ion storage owing to the rapid …
Polyaniline Electrochemically Deposited On Tailored Metal Mesh For Dynamically Stretchable Supercapacitors, Fangya Qi, Chen Zhao, Caiyun Wang, Xiaoteng Jia, Li Weng, Tingting He, Yonggang Min
Polyaniline Electrochemically Deposited On Tailored Metal Mesh For Dynamically Stretchable Supercapacitors, Fangya Qi, Chen Zhao, Caiyun Wang, Xiaoteng Jia, Li Weng, Tingting He, Yonggang Min
Australian Institute for Innovative Materials - Papers
© 2019 The Electrochemical Society. As power source for integrated wearable electronics, stretchable supercapacitors have gained significant attention. Here, an in-plane compression strategy is proposed to make highly stretchable current collectors from commercially available stainless steel mesh. Polyaniline is deposited on the compressed metal mesh to produce stretchable pseudo-capacitive electrode with 100% stretching deformation capability. An intrinsically stretchable supercapacitor is demonstrated using such electrodes and poly(vinyl alcohol)H3PO4 polymer gel electrolyte. The assembled supercapacitor shows an areal capacitance of 13.5 mF cm−2 at a current density of 0.1 mA cm−2. It can maintain 89% of its initial capacitance after 1000 stretching/releasing …
Hybrid Graphene/Conducting Polymer Strip Sensors For Sensitive And Selective Electrochemical Detection Of Serotonin, Wed Al-Graiti, Javad Foroughi, Yuqing Liu, Jun Chen
Hybrid Graphene/Conducting Polymer Strip Sensors For Sensitive And Selective Electrochemical Detection Of Serotonin, Wed Al-Graiti, Javad Foroughi, Yuqing Liu, Jun Chen
Australian Institute for Innovative Materials - Papers
© 2019 American Chemical Society. There is an urgent need for electrochemical sensor materials that exhibit electrochemically compliant properties while also retaining high durability under physiological conditions. Herein, we demonstrate a novel strip-style electrochemical sensor using reduced graphene oxide (rGO) and poly(ethylene dioxythiophene)/poly(styrene sulfonic acid) (PEDOT/PSS) nanocomposite films. The fabricated rGO-PEDOT/PSS sensor with and without nafion has shown an effective electrochemical response for both selectivity and sensitivity of the serotonin (5-hydroxytryptamine, 5-HT) neurotransmitter. The developed high-performance hybrid graphene/conducting polymer strip sensors are likely to find applications as chip electrochemical sensor devices for patients diagnosed with Alzheimer's disease.
A Flexible And Boron-Doped Carbon Nanotube Film For High-Performance Li Storage, Lei Wang, Wenlei Guo, Pengyi Lu, Tao Zhang, Feng Hou, Ji Liang
A Flexible And Boron-Doped Carbon Nanotube Film For High-Performance Li Storage, Lei Wang, Wenlei Guo, Pengyi Lu, Tao Zhang, Feng Hou, Ji Liang
Australian Institute for Innovative Materials - Papers
© Copyright © 2019 Wang, Guo, Lu, Zhang, Hou and Liang. Boron-doped carbon nanotubes are a promising candidate for Li storage due to the unique electronic structure and high crystallinity brought by the boron dopants. However, the relatively low Li storage capacity has limited its application in the electrochemical energy storage field, which is mainly caused by the predominantly intact graphitic structure on their surface with limited access points for Li ion entering. Herein, we report a novel B-doped CNTs (py-B-CNTs) film, in which the CNTs possess intrinsically rough surface but flat internal graphitic structure. When used as a flexible …
Natural Hazards And Social Vulnerability Of Place: The Strength-Based Approach Applied To Wollongong, Australia, Robert Ighodaro Ogie, Biswajeet Pradhan
Natural Hazards And Social Vulnerability Of Place: The Strength-Based Approach Applied To Wollongong, Australia, Robert Ighodaro Ogie, Biswajeet Pradhan
SMART Infrastructure Facility - Papers
Natural hazards pose significant threats to different communities and various places around the world. Failing to identify and support the most vulnerable communities is a recipe for disaster. Many studies have proposed social vulnerability indices for measuring both the sensitivity of a population to natural hazards and its ability to respond and recover from them. Existing techniques, however, have not accounted for the unique strengths that exist within different communities to help minimize disaster loss. This study proposes a more balanced approach referred to as the strength-based social vulnerability index (SSVI). The proposed SSVI technique, which is built on sound …
The Application Of Evolutionary Computation And Metaheuristics For Solving The Network Design Problems, Mehrdad Amirghasemi, Bo Du, Johan Barthelemy, Robert Ighodaro Ogie, Pascal Perez
The Application Of Evolutionary Computation And Metaheuristics For Solving The Network Design Problems, Mehrdad Amirghasemi, Bo Du, Johan Barthelemy, Robert Ighodaro Ogie, Pascal Perez
SMART Infrastructure Facility - Papers
Network Design Problems (NDPs) can model many real-life problems in a wide range of domains from transportation, supply chain management and logistics, through to the design of telecommunication networks and airline routes. NDPs are generally tackled through employing sophisticated exact methods and (meta-)heuristics. Exact methods mainly include mixed integer programming, column generation, and branch and bound techniques. Metaheuristics, as the second strategy of solving NDPs, can comprise any construction methods, local searches (point-based), evolutionary (population-based) techniques as well as their hybrids. In this abstract, we discuss the challenges and potentials of designing an effective hybrid metaheuristic for solving NDPs by …
Computer Vision And Iot-Based Sensors In Flood Monitoring And Mapping: A Systematic Review, Bilal Arshad, Robert Ighodaro Ogie, Johan Barthelemy, Biswajeet Pradhan, Nicolas R. Verstaevel, Pascal Perez
Computer Vision And Iot-Based Sensors In Flood Monitoring And Mapping: A Systematic Review, Bilal Arshad, Robert Ighodaro Ogie, Johan Barthelemy, Biswajeet Pradhan, Nicolas R. Verstaevel, Pascal Perez
SMART Infrastructure Facility - Papers
Floods are amongst the most common and devastating of all natural hazards. The alarming number of flood-related deaths and financial losses suffered annually across the world call for improved response to flood risks. Interestingly, the last decade has presented great opportunities with a series of scholarly activities exploring how camera images and wireless sensor data from Internet-of-Things (IoT) networks can improve flood management. This paper presents a systematic review of the literature regarding IoT-based sensors and computer vision applications in flood monitoring and mapping. The paper contributes by highlighting the main computer vision techniques and IoT sensor approaches utilised in …
High Pressure Synchrotron X-Ray Diffraction Study Of The Mn0.94ti0.06coge Alloy, Precious Shamba, J C. Debnath, Jian Li Wang, Qinfen Gu
High Pressure Synchrotron X-Ray Diffraction Study Of The Mn0.94ti0.06coge Alloy, Precious Shamba, J C. Debnath, Jian Li Wang, Qinfen Gu
Australian Institute for Innovative Materials - Papers
High pressure x-ray diffraction studies up to 10.4 GPa were performed on the Mn0.94Ti0.06CoGe alloy using synchrotron radiation with a diamond anvil cell. No structural phase transitions occurred in the entire range of our measurements. Unit cell parameters were determined up to 10.4 GPa and the calculated unit cell volumes were found to be well represented by a third order Birch-Murnaghan equation of state. The bulk modulus determined from the pressure - volume data was found to be, B0 = 231.72 ± 7.79 GPa. This study, employing high resolution synchrotron x-rays has helped clarify the behaviour of the Mn0.94Ti0.06CoGe alloy …
Engineering Additional Edge Sites On Molybdenum Dichalcogenides Toward Accelerated Alkaline Hydrogen Evolution Kinetics, Qian Zhou, Guoqiang Zhao, Kun Rui, Yaping Chen, Xun Xu, Shi Xue Dou, Wenping Sun
Engineering Additional Edge Sites On Molybdenum Dichalcogenides Toward Accelerated Alkaline Hydrogen Evolution Kinetics, Qian Zhou, Guoqiang Zhao, Kun Rui, Yaping Chen, Xun Xu, Shi Xue Dou, Wenping Sun
Australian Institute for Innovative Materials - Papers
The sluggish reaction kinetics of the hydrogen evolution reaction (HER) in alkaline media is a great obstacle to alkaline water electrolysis, and it remains a great challenge to develop precious metal-free efficient catalysts for the alkaline HER. Transition metal dichalcogenides (TMDs), in particular MoS2 and MoSe2, are promising catalysts for the HER in acidic media, but they exhibit much inferior catalytic activity for the alkaline HER owing to the slow water dissociation process. In this work, we, for the first time, demonstrate that TMD heterostructures with abundant edge sites deliver substantially accelerated alkaline HER kinetics, which is in great part …
Chemical Design Of Palladium-Based Nanoarchitectures For Catalytic Applications, Muhammad Iqbal, Yusuf Valentino Kaneti, Jeonghun Kim, Brian Yuliarto, Yong-Mook Kang, Yoshio Bando, Yoshiyuki Sugahara, Yusuke Yamauchi
Chemical Design Of Palladium-Based Nanoarchitectures For Catalytic Applications, Muhammad Iqbal, Yusuf Valentino Kaneti, Jeonghun Kim, Brian Yuliarto, Yong-Mook Kang, Yoshio Bando, Yoshiyuki Sugahara, Yusuke Yamauchi
Australian Institute for Innovative Materials - Papers
Palladium (Pd) plays an important role in numerous catalytic reactions, such as methanol and ethanol oxidation, oxygen reduction, hydrogenation, coupling reactions, and carbon monoxide oxidation. Creating Pd-based nanoarchitectures with increased active surface sites, higher density of low-coordinated atoms, and maximized surface coverage for the reactants is important. To address the limitations of pure Pd, various Pd-based nanoarchitectures, including alloys, intermetallics, and supported Pd nanomaterials, have been fabricated by combining Pd with other elements with similar or higher catalytic activity for many catalytic reactions. Herein, recent advances in the preparation of Pd-based nanoarchitectures through solution-phase chemical reduction and electrochemical deposition methods …
Long-Life Room-Temperature Sodium-Sulfur Batteries By Virtue Of Transition-Metal-Nanocluster-Sulfur Interactions, Binwei Zhang, Tian Sheng, Yunxiao Wang, Shulei Chou, Kenneth Davey, Shi Xue Dou, Shizhang Qiao
Long-Life Room-Temperature Sodium-Sulfur Batteries By Virtue Of Transition-Metal-Nanocluster-Sulfur Interactions, Binwei Zhang, Tian Sheng, Yunxiao Wang, Shulei Chou, Kenneth Davey, Shi Xue Dou, Shizhang Qiao
Australian Institute for Innovative Materials - Papers
Room‐temperature sodium–sulfur (RT‐Na/S) batteries hold significant promise for large‐scale application because of low cost of both sodium and sulfur. However, the dissolution of polysulfides into the electrolyte limits practical application. Now, the design and testing of a new class of sulfur hosts as transition‐metal (Fe, Cu, and Ni) nanoclusters (ca. 1.2 nm) wreathed on hollow carbon nanospheres (S@M‐HC) for RT‐Na/S batteries is reported. A chemical couple between the metal nanoclusters and sulfur is hypothesized to assist in immobilization of sulfur and to enhance conductivity and activity. S@Fe‐HC exhibited an unprecedented reversible capacity of 394 mAh g−1 despite 1000 cycles …
A Freestanding Cnts Film Fabricated By Pyrrole-Modified Cvd For Capacitive Deionization, Dan Song, Wenlei Guo, Tao Zhang, Pengyi Lu, Anran Guo, Feng Hou, Xiao Yan, Ji Liang
A Freestanding Cnts Film Fabricated By Pyrrole-Modified Cvd For Capacitive Deionization, Dan Song, Wenlei Guo, Tao Zhang, Pengyi Lu, Anran Guo, Feng Hou, Xiao Yan, Ji Liang
Australian Institute for Innovative Materials - Papers
Carbon nanotubes (CNTs) are an excellent electrode material for capacitive deionization (CDI), due to their excellent electronic conductivity and outstanding chemical/physical stability. Their powder form and easy aggregation, however, have greatly limited their practical CDI performance. Aiming to address this issue, the authors report a freestanding CNT film which was fabricated by floating-catalyst chemical vapor deposition, as a binder-free electrode for CDI. By simply adjusting the pyrrole content in the precursor, the morphology of the resulting CNT film can be tuned to meet the requirements of CDI. In the presence of 2 wt.% pyrrole, the CNT film with a mesoporous …
Electrochemical Impacts Of Sheet-Like Hafnium Phosphide And Hafnium Disulfide Catalysts Bonded With Reduced Graphene Oxide Sheets For Bifunctional Oxygen Reactions In Alkaline Electrolytes, Mayilvel Meganathan, Taizhong Huang, Hengyi Fang, Jianfeng Mao, Guoxin Sun
Electrochemical Impacts Of Sheet-Like Hafnium Phosphide And Hafnium Disulfide Catalysts Bonded With Reduced Graphene Oxide Sheets For Bifunctional Oxygen Reactions In Alkaline Electrolytes, Mayilvel Meganathan, Taizhong Huang, Hengyi Fang, Jianfeng Mao, Guoxin Sun
Australian Institute for Innovative Materials - Papers
Non-noble metal-based catalysts with efficient catalytic activities for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are critical for energy conversion devices, including fuel cells and metal–air batteries. In this work, novel hafnium phosphide-reduced graphene oxide nanosheets (HfP-rGO NS) and hafnium disulfide-reduced graphene oxide nanosheets (HfS2-rGO NS) were synthesized and investigated as bifunctional electrocatalysts for OER and ORR. The prepared HfP-rGO NS and HfS2-rGO NS catalysts showed nanosheet structures, where the HfP or HfS2 nanosheet was closely packed with rGO. A unique methodology was adopted to lodge the non-metal oxide catalytic sheets (i.e., HfP and HfS2) over the …
Effects Of Ipa Treatment On The Photovoltaic Performance Of Bulk Heterojunction Organic Solar Cells, Ali Aghassi, Cormac Fay
Effects Of Ipa Treatment On The Photovoltaic Performance Of Bulk Heterojunction Organic Solar Cells, Ali Aghassi, Cormac Fay
Australian Institute for Innovative Materials - Papers
The treatment of the bulk heterojunction (BHJ) active layer by polar solvents such as alcohols is regarded as a simple, yet effective technique to enhance the power conversion efficiency (PCE) of organic solar cells (OSCs). This study investigated the impact of isopropyl alcohol (IPA) on the photovoltaic performance of two BHJ solar cell devices composed of (a) Poly[N-9′-heptadecanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and (b) 7,7′-[4,4-Bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′] dithiophene-2,6-diyl]bis [6-fluoro-4-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazole (p-DTS(FBTTh 2 ) 2 as donors and [6,6]-phenyl-C61-butyric acid methyl ester (PC 60 BM) as the acceptor in both instances. The physical characteristics of the active layers before and after the treatment were established by UV-Vis …
Ordered Platinum-Bismuth Intermetallic Clusters With Pt-Skin For A Highly Efficient Electrochemical Ethanol Oxidation Reaction, Binwei Zhang, Weihong Lai, Tian Sheng, Xi-Ming Qu, Yunxiao Wang, Long Ren, Lei Zhang, Yi Du, Yan-Xia Jiang, Shi-Gang Sun, Shi Xue Dou
Ordered Platinum-Bismuth Intermetallic Clusters With Pt-Skin For A Highly Efficient Electrochemical Ethanol Oxidation Reaction, Binwei Zhang, Weihong Lai, Tian Sheng, Xi-Ming Qu, Yunxiao Wang, Long Ren, Lei Zhang, Yi Du, Yan-Xia Jiang, Shi-Gang Sun, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
The ethanol oxidation reaction is extensively explored, but electrocatalysts that could achieve a complete oxidation pathway to CO 2 /CO 32- are much less reported. Here, we synthesize a monatomic Pt layer (Pt-skin) on ordered intermetallic PtBi clusters (PtBi@Pt) supported on graphene via a single atom self-assembling (SAS) method to form a superior catalyst. The PtBi@Pt with an ultrafine size (∼2 nm) delivers an extremely high mass activity of 9.01 mA μg Pt-1 , which is 8-fold more active than the commercial Pt/C; significantly, in situ Fourier transform infrared spectroscopy indicates that ethanol is completely oxidized to CO 32- on …
Sb2te3 Topological Insulator: Surface Plasmon Resonance And Application In Refractive Index Monitoring, Hua Lu, Siqing Dai, Zengji Yue, Yicun Fan, Huachao Cheng, Jianglei Di, Dong Mao, Enpu Li, Ting Mei, Jianlin Zhao
Sb2te3 Topological Insulator: Surface Plasmon Resonance And Application In Refractive Index Monitoring, Hua Lu, Siqing Dai, Zengji Yue, Yicun Fan, Huachao Cheng, Jianglei Di, Dong Mao, Enpu Li, Ting Mei, Jianlin Zhao
Australian Institute for Innovative Materials - Papers
Topological insulators as new emerging building blocks in electronics and photonics present promising prospects for exciting surface plasmons and enhancing light-matter interaction. Thus, exploring the visible-range plasmonic response of topological insulators is significant to reveal their optical characteristics and broaden their applications at high frequencies. Herein, we report the experimental demonstration of a visible-range surface plasmon resonance (SPR) effect on an antimony telluride (Sb 2 Te 3 ) topological insulator film. The results show that the SPR can be excited with a relatively small incident angle in the Kretschmann configuration based on the Sb 2 Te 3 film. Especially, we …
Platinum/Nickel Bicarbonate Heterostructures Towards Accelerated Hydrogen Evolution Under Alkaline Conditions, Mengmeng Lao, Kun Rui, Guoqiang Zhao, Peixin Cui, Xusheng Zheng, Shi Xue Dou, Wenping Sun
Platinum/Nickel Bicarbonate Heterostructures Towards Accelerated Hydrogen Evolution Under Alkaline Conditions, Mengmeng Lao, Kun Rui, Guoqiang Zhao, Peixin Cui, Xusheng Zheng, Shi Xue Dou, Wenping Sun
Australian Institute for Innovative Materials - Papers
Heterostructured nanomaterials, generally have physicochemical properties that differ from those of the individual components, and thus have potential in a wide range of applications. New platinum (Pt)/nickel bicarbonate (Ni(HCO 3 ) 2 ) heterostructures are designed for an efficient alkaline hydrogen evolution reaction (HER). Notably, the specific and mass activity of Pt in Pt/Ni(HCO 3 ) 2 are substantially improved compared to the bare Pt nanoparticles (NPs). The Ni(HCO 3 ) 2 provides abundant water adsorption/dissociation sites and modulate the electronic structure of Pt, which determine the elementary reaction kinetics of alkaline HER. The Ni(HCO 3 ) 2 nanoplates offer …
Using Force-Displacement Relations To Obtain Actuation Parameters From Artificial Muscles, Geoffrey M. Spinks, Shannon Bakarich, Shazed Md Aziz, Bidita Binte Salahuddin, Hai Xin
Using Force-Displacement Relations To Obtain Actuation Parameters From Artificial Muscles, Geoffrey M. Spinks, Shannon Bakarich, Shazed Md Aziz, Bidita Binte Salahuddin, Hai Xin
Australian Institute for Innovative Materials - Papers
Many different test methods are currently used to characterise the output of artificial muscle materials but few studies report the full range of possible force and displacements that can be generated by a given material when activated with a given input stimulus but when operated against different external loads. The measurement of the loading and unloading force extension curves in tension in both the un-activated and activated states is investigated as a means for efficiently characterising the full range of outputs for three different types of artificial muscles: pneumatically operated braided muscle and thermally operated shape memory alloy spring and …
Nio-Nanofillers Embedded In Graphite/Pva-Polymer Matrix For Efficient Electromagnetic Radiation Shielding, Tariq Alzoubi, Borhan Albiss, M-Ali Al-Akhras, Hamzeh Qutaish, Enad Abed Mahmood Alabed, Sheik Md. Kazi Nazrul Islam
Nio-Nanofillers Embedded In Graphite/Pva-Polymer Matrix For Efficient Electromagnetic Radiation Shielding, Tariq Alzoubi, Borhan Albiss, M-Ali Al-Akhras, Hamzeh Qutaish, Enad Abed Mahmood Alabed, Sheik Md. Kazi Nazrul Islam
Australian Institute for Innovative Materials - Papers
In this study, we report on the preparation of NiO/graphite sheets nanofillers in PVA-polymer matrix using a simple cost-effective hydrothermal process for EM shielding effectiveness applications. The careful optimization of the growth conditions and NiO/G/PVA relative ratios have resulted in NiO nanoparticles formation with homogeneous density. In this nanocomposite, the NiO nanoparticles and graphite sheets were incorporated into a polymer to enhance the electromagnetic shielding effectiveness. The morphological, structural, and chemical analysis have been conducted by SEM, EDX and XRD techniques. EDX and XRD analysis confirmed the exact chemical composition with high purity. SEM images showed the best morphology with …