نتایج جستجو برای: electrocatalytic

تعداد نتایج: 5110  

Journal: :Chemical communications 2009
Hua Bai Yuxi Xu Lu Zhao Chun Li Gaoquan Shi

Graphene sheets were stably dispersed in water by functionalization with sulfonated polyaniline (SPANI), and the composite film of SPANI-functionalized graphene showed improved electrochemical stability and enhanced electrocatalytic activity.

Journal: :Chemical communications 2011
Young Wook Lee Mi Ae Lim Shin Wook Kang Inkyu Park Sang Woo Han

Pt and Pd nanotubes could be prepared rapidly with high yields and good uniformity through the reduction of metal precursors in the presence of ZnO nanowires as inexpensive sacrificial templates. The prepared nanotubes showed efficient electrocatalytic properties toward alcohol oxidation.

Journal: :Chemical communications 2010
Yiqing Sun Chun Li Yuxi Xu Hua Bai Zhiyi Yao Gaoquan Shi

Graphitic carbon nitride, a polymeric catalyst, was immobilized on the surfaces of chemically converted graphene sheets to form a layered composite, which exhibited greatly improved conductivity and electrocatalytic performance on oxygen reduction reaction.

Journal: :Chemical communications 2010
Blake J Plowman Anthony P O'Mullane P R Selvakannan Suresh K Bhargava

The formation of macroporous honeycomb gold using an electrochemically generated hydrogen bubble template is described. The synthesis procedure induces the formation of highly active surfaces with enhanced electrocatalytic and surface enhanced Raman scattering properties.

2017
Wei Wang Xiaomin Xu Wei Zhou Zongping Shao

The development of clean and renewable energy materials as alternatives to fossil fuels is foreseen as a potential solution to the crucial problems of environmental pollution and energy shortages. Hydrogen is an ideal energy material for the future, and water splitting using solar/electrical energy is one way to generate hydrogen. Metal-organic frameworks (MOFs) are a class of porous materials ...

2017
Ntsoaki G. Mphuthi Abolanle S. Adekunle Omolola E. Fayemi Lukman O. Olasunkanmi Eno E. Ebenso

The electrocatalytic properties of metal oxides (MO = Fe3O4, ZnO) nanoparticles doped phthalocyanine (Pc) and functionalized MWCNTs, decorated on glassy carbon electrode (GCE) was investigated. Successful synthesis of the metal oxide nanoparticles and the MO/Pc/MWCNT composite were confirmed using UV-Vis, EDX, XRD and TEM techniques. Successful modification of GCE with the MO and their composit...

2017
R. Berenguer A. La Rosa-Toro C. Quijada E. Morallón

Copper and copper oxides are well-known excellent catalysts in several chemical processes, but their low mechanical and electrochemical stability restrict their direct utilization as electrodes in electrolytic processes. In this work, the incorporation of copper into cobalt oxide (CuxCo3-xO4) is presented as an excellent approach to obtain highly active and robust copper-based electrocatalysts....

2013
Rameshwori Loukrakpam Shiyao Shan Valeri Petkov Lefu Yang Jin Luo Chuan-Jian Zhong

For oxygen reduction reaction (ORR) over alloy electrocatalysts, the understanding of how the atomic arrangement of the metal species in the nanocatalysts is responsible for the catalytic enhancement is challenging for achieving better design and tailoring of nanoalloy catalysts. This paper reports results of an investigation of the atomic structures and the electrocatalytic activities of terna...

2015
Dmitry Pankratov Richard Sundberg Javier Sotres Dmitry B Suyatin Ivan Maximov Sergey Shleev Lars Montelius

Here we detail high performance, enzymatic electrodes for oxygen bio-electroreduction, which can be easily and reproducibly fabricated with industry-scale throughput. Planar and nanostructured electrodes were built on biocompatible, flexible polymer sheets, while nanoimprint lithography was used for electrode nanostructuring. To the best of our knowledge, this is one of the first reports concer...

Banafsheh Norouzi Samaneh Tajjedin

Carbon paste electrode modified with cobalt impregnated zeolite was prepared by mixing of cobalt_zeolite (Co_Z) and graphite powder with different percent. The electrochemical oxidation of cefixime at such electrodes was investigated using the cyclic voltammetric and amperometric techniques. It is not electrochemically active towards cefixime oxidation in 0.1 M phosphate buffer solution (pH=7) ...

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