期刊
JOURNAL OF POWER SOURCES
卷 197, 期 -, 页码 121-124出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2011.09.051
关键词
PtAg nanoparticles; Core-shell nanoparticles; Glucose tolerant
资金
- Mexican Council for Science and Technology (CONACYT) [Fomix-Chihuahua 127461]
PtAg/C nanoparticles were synthesized by chemical reduction and evaluated for the oxygen reduction reaction (ORR) in the absence and presence of glucose. PtAg/C catalyst formed onion-like layered structures, which are uniformly distributed on the support. PtAg/C showed activity comparable to that of Pt/C ETEK for ORR. Further, the catalyst exhibited high selectivity for ORR in the presence of glucose. PtAg/C was evaluated as cathode in a microfluidic fuel cell operated with high concentration of glucose (100 mM) as fuel. The results demonstrated that the use of PtAg/C as cathode electrode achieved higher selectivity and better performance compared with Pt/C catalyst. (C) 2011 Elsevier B.V. All rights reserved.
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