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. |
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