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Articles 31 - 36 of 36
Full-Text Articles in Physical Sciences and Mathematics
Capacitive Behavior Of Latex/Single-Wall Carbon Nanotube Stretchable Electrodes, Hyeon Taek Jeong, Byung Kim, Robert Gorkin Iii, Michael J. Higgins, Gordon G. Wallace
Capacitive Behavior Of Latex/Single-Wall Carbon Nanotube Stretchable Electrodes, Hyeon Taek Jeong, Byung Kim, Robert Gorkin Iii, Michael J. Higgins, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
In this report single-wall carbon nanotubes (SWNTs) were coated onto latex using spray coating to produce a stretchable electrode. The electrochemical properties of the electrode were determined using cyclic voltammetry and electrochemical impedance spectroscopy and galvanostatic charge/discharge tests were also carried out. The impedance and charge/discharge curves of the latex/SWNTs electrode showed good capacitive behavior even after repetitive stretching to 100% strain. The highest capacitance value obtained for the unstretched SWNTs electrode was 119 F g−1 in 1 M Na2SO4 at 5 mV s−1. After the 100th stretch ≈ 80% of the original capacitance value was retained.
Fabrication Of Free-Standing Hierarchical Carbon Nanofiber/Graphene Oxide/Polyaniline Films For Supercapacitors, Dongdong Xu, Qun Xu, Kaixi Wang, Jun Chen, Zhimin Chen
Fabrication Of Free-Standing Hierarchical Carbon Nanofiber/Graphene Oxide/Polyaniline Films For Supercapacitors, Dongdong Xu, Qun Xu, Kaixi Wang, Jun Chen, Zhimin Chen
Australian Institute for Innovative Materials - Papers
A hierarchical high-performance electrode with nanoacanthine-style polyaniline (PANI) deposited onto a carbon nanofiber/graphene oxide (CNF/GO) template was successfully prepared via an in situ polymerization process. The morphology analysis shows that introducing one-dimensional (1D) CNF could significantly decrease/inhibit the staking of laminated GO to form an open-porous CNF/GO architecture. Followed with in situ facial deposition of PANI, the as-synthesized PANI modified CNF/GO exhibits three-dimensional (3D) hierarchical layered nanoarchitecture, which favors the diffusion of the electrolyte ions into the inner region of active materials. The hierarchical free-standing electrodes were directly fabricated into sandwich structured supercapacitors using 1 M H2SO4 as the electrolyte …
A New Strategy For Integrating Abundant Oxygen Functional Groups Into Carbon Felt Electrode For Vanadium Redox Flow Batteries, Ki Jae Kim, Seung-Wook Lee, Taeeun Yim, Jae-Geun Kim, Jang Wook Choi, Jung Ho Kim, Min-Sik Park, Young-Jun Kim
A New Strategy For Integrating Abundant Oxygen Functional Groups Into Carbon Felt Electrode For Vanadium Redox Flow Batteries, Ki Jae Kim, Seung-Wook Lee, Taeeun Yim, Jae-Geun Kim, Jang Wook Choi, Jung Ho Kim, Min-Sik Park, Young-Jun Kim
Australian Institute for Innovative Materials - Papers
The effects of surface treatment combining corona discharge and hydrogen peroxide (H2O2) on the electrochemical performance of carbon felt electrodes for vanadium redox flow batteries (VRFBs) have been thoroughly investigated. A high concentration of oxygen functional groups has been successfully introduced onto the surface of the carbon felt electrodes by a specially designed surface treatment, which is mainly responsible for improving the energy efficiency of VRFBs. In addition, the wettability of the carbon felt electrodes also can be significantly improved. The energy efficiency of the VRFB cell employing the surface modified carbon felt electrodes is improved by 7% at high …
Fabrication Of Graphene Foam Supported Carbon Nanotube/Polyaniline Hybrids For High-Performance Supercapacitor Applications, Hongxia Yang, Nan Wang, Qun Xu, Zhimin Chen, Yumei Ren, Joselito M. Razal, Jun Chen
Fabrication Of Graphene Foam Supported Carbon Nanotube/Polyaniline Hybrids For High-Performance Supercapacitor Applications, Hongxia Yang, Nan Wang, Qun Xu, Zhimin Chen, Yumei Ren, Joselito M. Razal, Jun Chen
Australian Institute for Innovative Materials - Papers
A large-scale, high-powered energy storage system is crucial for addressing the energy problem. The development of high-performance materials is a key issue in realizing the grid-scale applications of energy-storage devices. In this work, we describe a simple and scalable method for fabricating hybrids (graphenepyrrole/ carbon nanotube-polyaniline (GPCP)) using graphene foam as the supporting template. Graphene-pyrrole (G-Py) aerogels are prepared via a green hydrothermal route from two-dimensional materials such as graphene sheets, while a carbon nanotube/polyaniline (CNT/PANI) composite dispersion is obtained via the in situ polymerization method. The functional nanohybrid materials of GPCP can be assembled by simply dipping the prepared …
Ch In Stellar Atmospheres: An Extensive Linelist, T. Masseron, B. Plez, S. Van Eck, R. Colin, I. Daoutidis, M. Godefroid, P.-F. Coheur, P. Bernath, A. Jorissen, N. Christleib
Ch In Stellar Atmospheres: An Extensive Linelist, T. Masseron, B. Plez, S. Van Eck, R. Colin, I. Daoutidis, M. Godefroid, P.-F. Coheur, P. Bernath, A. Jorissen, N. Christleib
Chemistry & Biochemistry Faculty Publications
The advent of high-resolution spectrographs and detailed stellar atmosphere modelling has strengthened the need for accurate molecular data. Carbon-enhanced metal-poor (CEMP) stars spectra are interesting objects with which to study transitions from the CH molecule. We combine programs for spectral analysis of molecules and stellar-radiative transfer codes to build an extensive CH linelist, including predissociation broadening as well as newly identified levels. We show examples of strong predissociation CH lines in CEMP stars, and we stress the important role played by the CH features in the Bond-Neff feature depressing the spectra of barium stars by as much as 0.2 mag …
Carbon And Nitrogen Isotope Analysis Of Archaeological Faunal Material From Dutchess Quarry Caves, Ny, Jessica Zuhlke
Carbon And Nitrogen Isotope Analysis Of Archaeological Faunal Material From Dutchess Quarry Caves, Ny, Jessica Zuhlke
Legacy Theses & Dissertations (2009 - 2024)
The purpose of this study was to do an isotopic analysis to determine the carbon and nitrogen isotope concentrations of archaeological faunal material found in the Dutchess Quarry Caves in Orange County, NY. These isotope values were then used to compare the taxa from which the samples were taken to determine if and how trophic relationships were formed. The main focus of this comparison spotlighted a sample from a human femur; to establish the human's position trophically with the other large and small mammal samples collected. The human had been previously radiocarbon dated to have lived between 2877 and 3180 …