Preparation and characterization of carbon-supported Pt-Au cathode catalysts for oxygen reduction reaction

NCUIR > Engineering College > National Central University Department of Chemical & Materials Engineering > journal & Dissertation > Item 987654321/26417

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26417

Title:	Preparation and characterization of carbon-supported Pt-Au cathode catalysts for oxygen reduction reaction
Authors:	Liu,CW;Wei,YC;Wang,KW
Contributors:	化學工程與材料工程學系
Keywords:	METHANOL FUEL-CELLS;TEMPERATURE-PROGRAMMED REDUCTION;NANOPARTICLE ELECTROCATALYSTS;PLATINUM;CO;GOLD;ALLOYS;TOLERANCE;PALLADIUM;PROMOTION
Date:	2009
Issue Date:	2010-06-29 17:27:35 (UTC+8)
Publisher:	中央大學
Abstract:	Alloy catalysts of Pt-Au/C with various Pt/Au ratios were prepared for an oxygen reduction reaction (ORR). The structure, Surface species, surface compositions, and electrocatalytic activities of prepared alloy catalysts were characterized by XRD, TPR, XPS, and rotating disk electrode (RDE) techniques. respectively. it was observed that the ORR activity of the Pt75Au25/C alloy catalyst was enhanced significantly in comparison to the commercial Pt/C catalyst within the mixed kinetic-diffusion control region. The alloying with Au modified the oxophilicity of Pt-Au alloy catalysts. TPR characterization suggests that the enhancement Of Pt75Au25/C was attributed to the formation of an alloy surface, having a moderate oxophilicity and a Pt-related alloy surface species. (C) 2009 Elsevier Inc. All rights reserved.
Relation:	JOURNAL OF COLLOID AND INTERFACE SCIENCE
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	474	View/Open

社群 sharing