نتایج جستجو برای: porous electrode

تعداد نتایج: 112106  

2014
Cheolwoong Lim Bo Yan Leilei Yin Likun Zhu

The realistic three dimensional (3D) microstructure of lithium ion battery (LIB) electrode plays a key role in studying the effects of inhomogeneous microstructures on the performance of LIBs. However, the complexity of realistic microstructures imposes a significant computational cost on numerical simulation of large size samples. In this work, we used tomographic data obtained for a commercia...

2017
Malkeshkumar Patel Wang-Hee Park Abhijit Ray Joondong Kim Jung-Ho Lee

In this data article, we presented the electrochemical data of the working electrode made of Co3O4 semi-transparent film. Electrochemically stable, porous nature of Kirkendall-diffusion grown Co3O4 films were applied to generate hydrogen from the seawater splitting (Patel et al., 2017) [1]. The data presented in this article includes the photograph of prepared samples, polarization curves for w...

Journal: :JAMDS 2001
Troy W. Farrell D. L. Sean McElwain Dominicus A. J. Swinkels

An equivalent circuit for an annular porous electrode is derived by reinterpreting the differential equations that approximate the distribution of voltage and current in such electrodes. The equivalent circuit is shown to provide useful physical interpretations of the secondary current distributions. Multi-loop circuit techniques are employed to obtain the current distributions within the circu...

Journal: :Electrochimica acta 2009
Emilia Morallón Joaquín Arias-Pardilla J M Calo D Cazorla-Amorós

The interactions of arsenic species with platinum and porous carbon electrodes were investigated with an electrochemical quartz crystal microbalance (EQCM) and cyclic voltammetry in alkaline solutions. It is shown that the redox reactions in arsenic-containing solutions, due to arsenic reduction/deposition, oxidation/desorption, and electrocatalyzed oxidation by Pt can be readily distinguished ...

2015
Yang Lu Xianming Liu Weixiao Wang Jinbing Cheng Hailong Yan Chengchun Tang Jang-Kyo Kim Yongsong Luo

Carbon nanotubes (CNTs) incorporated porous 3-dimensional (3D) CuS microspheres have been successfully synthesized via a simple refluxing method assisted by PVP. The composites are composed of flower-shaped CuS secondary microspheres, which in turn are assembled with primary nanosheets of 15-30 nm in thickness and fully integrated with CNT. The composites possess a large specific surface area o...

2017
Ping Li Jing Li Zhe Zhao Zhengsong Fang Meijia Yang Zhongke Yuan You Zhang Qiang Zhang Wei Hong Xudong Chen Dingshan Yu

Herein, a general strategy is proposed to boost the energy storage capability of pseudocapacitive materials (i.e., MnO2) to their theoretical limits in unconventional 1D fiber configuration by rationally designing bicontinuous porous Ni skeleton@metal wire "sheath-core" metallic scaffold as a versatile host. As a proof of concept, the 1D metallic scaffold supported-MnO2 fiber electrode is demon...

Journal: :Journal of biomedical nanotechnology 2013
Yan Deng Wei Wang Liming Zhang Zhuoxuan Lu Song Li Lijian Xu

Using the nano-porous pseudo carbon paste electrode (Nano-PPCPE) as the working electrode, mixing L-glutamate oxidase (L-GLOD), catalase (Cat) and bovine serum albumin (BSA) with phosphate buffer (PB, pH = 7.4), followed by cross-linking with glutaraldehyde, a novel L-glutamate electrochemical biosensor was successfully formed. It was demonstrated that the modified nano-PPCPE exhibits a high se...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2012
Nadine Menzel Erik Ortel Ralph Kraehnert Peter Strasser

The performance of electrochemical reactions depends strongly on the morphology and structure of the employed catalytic electrodes. Nanostructuring of the electrode surface represents a powerful tool to increase the electrochemically active surface area of the electrodes. Moreover, it can also facilitate faster diffusive mass transport inside three-dimensional electrodes. This minireview descri...

Journal: :Nanoscale 2014
Ting-Ting Chen Hsiao-Ping Liu Yen-Ju Wei I-Chun Chang Min-Han Yang Yu-Shu Lin Kuei-Lin Chan Hsin-Tien Chiu Chi-Young Lee

A flexible, porous TiOxNy sheet consisting of numerous conductive fibers was synthesized by nitridation of titanate and further used as an electrochemical electrode. The high surface area and mixed-oxidation state of titanium make TiOxNy sheets to be promising candidates for a good supercapacitor.

Journal: :Dalton transactions 2018
Fen Ran Yage Wu Minghuan Jiang Yongtao Tan Ying Liu Lingbin Kong Long Kang Shaowei Chen

In this study, a hybrid electrode material for supercapacitors based on hierarchical porous carbon fiber@vanadium nitride nanoparticles is fabricated using the method of phase-separation mediated by the PAA-b-PAN-b-PAA tri-block copolymer. In the phase-separation procedure, the ionic block copolymer self-assembled on the surface of carbon nanofibers, and is used to adsorb NH4VO3. Thermal treatm...

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