DICP OpenIR
Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method; Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method
Zhou, ZH; Wang, SL; Zhou, WJ; Jiang, LH; Wang, GX; Sun, GQ; Zhou, B; Xin, Q
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS ; PHYSICAL CHEMISTRY CHEMICAL PHYSICS
2003-12-15 ; 2003-12-15
DOI10.1039/b310721c ; 10.1039/b310721c
Volume5Issue:24Pages:5485-5488
Indexed BySCI ; SCI
SubtypeArticle ; Article
Department305 ; 305
Funding Project305 ; 305
Contribution Rank1;1 ; 1;1
WOS HeadingsScience & Technology ; Science & Technology ; Physical Sciences ; Physical Sciences
WOS SubjectChemistry, Physical ; Chemistry, Physical ; Physics, Atomic, Molecular & Chemical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Chemistry ; Physics ; Physics
WOS KeywordSUPPORTED PLATINUM CATALYSTS ; SUPPORTED PLATINUM CATALYSTS ; METHANOL OXIDATION ; METHANOL OXIDATION ; OXYGEN REDUCTION ; OXYGEN REDUCTION ; FUEL-CELLS ; FUEL-CELLS ; ELECTROREDUCTION ; ELECTROREDUCTION ; CARBON ; CARBON ; SIZE ; SIZE
AbstractAn improved aqueous impregnation method was used to prepare 40 wt% Pt/C electrocatalysts. TEM analysis of the samples showed that the Pt particles impregnated for a short time have a very narrow size distribution in the range of 1-4 nm with an average size of 2.6 nm. UV-vis spectroscopy measurements verified that the redox reaction between PtCl62- and formaldehyde took place with a slow rate at ambient temperature via a two-step reaction path, where PtCl42- serves as an intermediate. The use of the short-time-impregnated 40 wt% Pt/C as cathode electrocatalysts in direct methanol fuel cells yields better performance than that of commercial 40 wt% Pt/C electrocatalyst. Experimental evidence provides clues for the fundamental understanding of elementary steps of the redox reactions, which helps in guiding the design and preparation of highly dispersed Pt catalyst for fuel cells.; An improved aqueous impregnation method was used to prepare 40 wt% Pt/C electrocatalysts. TEM analysis of the samples showed that the Pt particles impregnated for a short time have a very narrow size distribution in the range of 1-4 nm with an average size of 2.6 nm. UV-vis spectroscopy measurements verified that the redox reaction between PtCl62- and formaldehyde took place with a slow rate at ambient temperature via a two-step reaction path, where PtCl42- serves as an intermediate. The use of the short-time-impregnated 40 wt% Pt/C as cathode electrocatalysts in direct methanol fuel cells yields better performance than that of commercial 40 wt% Pt/C electrocatalyst. Experimental evidence provides clues for the fundamental understanding of elementary steps of the redox reactions, which helps in guiding the design and preparation of highly dispersed Pt catalyst for fuel cells.
Language英语 ; 英语
URL查看原文 ; 查看原文
WOS IDWOS:000187805500022 ; WOS:000187805500022
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/82845
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Methanol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Headwater NonoKinetix Inc, Lawrenceville, NJ 08648 USA
Recommended Citation
GB/T 7714
Zhou, ZH,Wang, SL,Zhou, WJ,et al. Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method, Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2003, 2003,5, 5(24):5485-5488, 5485-5488.
APA Zhou, ZH.,Wang, SL.,Zhou, WJ.,Jiang, LH.,Wang, GX.,...&Xin, Q.(2003).Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,5(24),5485-5488.
MLA Zhou, ZH,et al."Preparation of highly active Pt/C cathode electrocatalysts for DMFCs by an improved aqueous impregnation method".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 5.24(2003):5485-5488.
Files in This Item:
File Name/Size DocType Version Access License
20034D1YL478BT.pdf(294KB) 开放获取--Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou, ZH]'s Articles
[Wang, SL]'s Articles
[Zhou, WJ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, ZH]'s Articles
[Wang, SL]'s Articles
[Zhou, WJ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, ZH]'s Articles
[Wang, SL]'s Articles
[Zhou, WJ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.