Back to Search Start Over

A simple one-pot strategy to platinum–palladium@palladium core–shell nanostructures with high electrocatalytic activity.

A simple one-pot strategy to platinum–palladium@palladium core–shell nanostructures with high electrocatalytic activity.

Authors :
Lv, Jing-Jing
Zheng, Jie-Ning
Wang, Ying-Ying
Wang, Ai-Jun
Chen, Li-Li
Feng, Jiu-Ju
Source :
Journal of Power Sources. Nov2014, Vol. 265, p231-238. 8p.
Publication Year :
2014

Abstract

Abstract: Well-defined platinum–palladium@palladium core–shell nanospheres (PtPd@Pd NSs) are synthesized by a facile one-pot solution approach using N-methylimidazole and poly(vinyl pyrrolidone) (PVP) as directing and capping agents, respectively, without using any seed, template, or organic solvent. The coexistence of the precursors, N-methylimidazole, PVP, and reaction temperature has great effects on the final morphology. Thus-prepared nanocomposites display an improved electrocatalytic activity for oxygen reduction reaction (ORR) in acidic media, methanol and ethylene glycol oxidation reaction in alkaline media, compared with Pt nanoparticles, Pd nanoparticles, commercial Pt black and Pd black catalysts. This method may direct a general orientation for shape control synthesis of functional bimetallic nanocrystals as promising electrocatalysts in direct alcohol fuel cells (DAFCs). [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
03787753
Volume :
265
Database :
Academic Search Index
Journal :
Journal of Power Sources
Publication Type :
Academic Journal
Accession number :
96448328
Full Text :
https://doi.org/10.1016/j.jpowsour.2014.04.108