Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 37, Issue 18, Pages 13365-13370Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.06.109
Keywords
Core-shell; Low Pt loading; Electrocatalyst; Oxygen reduction; PEMFC
Categories
Funding
- National Science Foundation of China [21176022]
- International ration Program of China [2009DFA63120]
- National High Technology Research and Development Program of China [2011AA11A273, 2012AA03A709]
- National Defense Basic Scientific Research Program of China [A1420110023]
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Ag@Pt core-shell nanoparticles with different Ag/Pt ratios were supported on multi walled carbon nanotubes (MWCNTs) and used as electrocatalysts for PEMFC. The morphology of the electrocatalyst samples was characterized by XRD and HRTEM. It was found that the Ag@Pt/MWCNTs catalyst exhibited a core-shell nanostructure. And the CV and LSV results demonstrated that such core-shell materials exhibited attractive electrocatalytic activity. Moreover, the specific electrochemically active area (EAS) of the Ag@Pt/MWCNTs catalyst is 70.63 m(2) g(-1), which is higher than the values reported in the literature. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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