Preparation and characterization of Pt/C cathode catalysts for direct methanol fuel cells - Effect of different preparation and treatment methods

	Preparation and characterization of Pt/C cathode catalysts for direct methanol fuel cells - Effect of different preparation and treatment methods
	Li, WZ; Zhou, ZH; Zhou, WJ; Li, HQ; Zhao, XS; Wang, GX; Sun, GQ; Xin, Q
刊名	chinese journal of catalysis
	2003-06-01
卷号	24 期号:6 页码:465-470
关键词	rotating disk electrode direct methanol fuel cell platinum carbon supported catalyst cathode oxygen-reductive reaction
英文摘要	the carbon-supported platinum catalysts 20% pt/c were prepared by reduction of platinum salts with various reducing agents (such as nabh4, hcho and eg(ethylene glycol)) in various solvents (such as h2o, i-proh and eg). the pt/c(eg) catalyst was treated at 900 degreesc in hydrogen atmosphere. the distribution and size of pt metal particles in the pt/c catalysts were characterized by xrd and tem. the pt metal particles of pt/c(eg) catalyst are highly and homogeneously dispersed with a narrow size distribution, centering at 2.4 nm. the rotating disk electrode (rde) tests showed that the activity order of the catalysts for orygen redutive reaction (orr) is as follows: pt/c(hcho) > pt/c(eg) > pt/c(nabh4). however, the pt/c(eg) catalyst exhibits enhanced activity for orr and superior performance in direct methanol fuel cell test as compared with the pt/c catalysts prepared by the other two methods and the heat-treated pt/c, which could have smaller pt particle size. pt/c(eg) catalyst showed better performance at activation-controlled region and comparative power density as compared with the commercial pt/c catalyst. cl- shows a negative effect on the orr in both dmfc and rde tests.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	oxygen reduction catalysts ; transition-metal sulfides ; particle-size ; platinum ; electrocatalysis ; oxidation ; alloys ; performance ; support ; carbon
收录类别	SCI
语种	英语
WOS记录号	WOS:000184218500015
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138384]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, WZ,Zhou, ZH,Zhou, WJ,et al. Preparation and characterization of Pt/C cathode catalysts for direct methanol fuel cells - Effect of different preparation and treatment methods[J]. chinese journal of catalysis,2003,24(6):465-470.
APA	Li, WZ.,Zhou, ZH.,Zhou, WJ.,Li, HQ.,Zhao, XS.,...&Xin, Q.(2003).Preparation and characterization of Pt/C cathode catalysts for direct methanol fuel cells - Effect of different preparation and treatment methods.chinese journal of catalysis,24(6),465-470.
MLA	Li, WZ,et al."Preparation and characterization of Pt/C cathode catalysts for direct methanol fuel cells - Effect of different preparation and treatment methods".chinese journal of catalysis 24.6(2003):465-470.