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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Effect of Ni core structure on the electrocatalytic activity of Pt-Ni/C in methanol oxidation
Materials, Volume 6, No. 7, Year 2013
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Description
Methanol oxidation catalysts comprising an outer Pt-shell with an inner Ni-core supported on carbon, (Pt-Ni/C), were prepared with either crystalline or amorphous Ni core structures. Structural comparisons of the two forms of catalyst were made using transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), and methanol oxidation activity compared using CV and chronoamperometry (CA). While both the amorphous Ni core and crystalline Ni core structures were covered by similar Pt shell thickness and structure, the Pt-Ni(amorphous)/C catalyst had higher methanol oxidation activity. The amorphous Ni core thus offers improved Pt usage efficiency in direct methanol fuel cells. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Authors & Co-Authors
Kang, Jian
China, Lanzhou
Northwest Normal University China
Wang, Rongfang
China, Lanzhou
Northwest Normal University China
Wang, Hui
China, Lanzhou
Northwest Normal University China
Liao, Shijun
China, Guangzhou
South China University of Technology
Key, Julian D.
South Africa, Bellville
University of the Western Cape
Linkov, Vladimir M.
South Africa, Bellville
University of the Western Cape
Ji, Shan
South Africa, Bellville
University of the Western Cape
Statistics
Citations: 474
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.3390/ma6072789
e-ISSN:
19961944
Research Areas
Environmental