中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Carbon nanofibers supported Pt-Ru electrocatalysts for direct methanol fuel cells
作者: Guo, JS;  Sun, GQ;  Wang, Q;  Wang, GX;  Zhou, ZH;  Tang, SH;  Jiang, LH;  Zhou, B;  Xin, Q
关键词: carbon nanofibers ;  catalyst support ;  surface properties
刊名: CARBON
发表日期: 2006
DOI: 10.1016/j.carbon.2005.06.047
卷: 44, 期:1, 页:152-157
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Oxidized and reduced carbon nanofibers (OCNF and RCNF) were used as supports to prepare highly dispersed PtRu catalysts for the direct methanol fuel cells (DMFC). The structural and surface features and electrocatalytic properties of bimetallic PtRu/ OCNF and PtRu/RCNF were extensively investigated. FT-IR spectra show that carboxyl groups exist on the surface of the OCNF, which greatly influence the morphology and crystallinity of the electrocatalysts. Transmission electron microscopy and X-ray diffraction consistently show that PtRu/RCNF has a smaller particle size and more uniform distribution than PtRu/OCNF. However, both catalysts have very similar methanol oxidation peak current densities that are significantly lower than commercial catalyst based on current-voltage (CV) results. These two catalysts also give very similar single cell performance except for some difference in the resistance polarization region. The OCNF supported catalysts give better performance than commercial catalysts when current density is higher than 50 mA cm(-2) in spite of low methanol oxidation peak current density. These results can be ascribed to the specific surface and structural properties of carbon nanofibers. (C) 2005 Elsevier Ltd. All rights reserved.
关键词[WOS]: ANODE CATALYSTS ;  OXIDATION ;  ELECTROOXIDATION ;  PERFORMANCE ;  ELECTRODES ;  NANOTUBES ;  PLATINUM
语种: 英语
WOS记录号: WOS:000233508700018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140249
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Headwaters Nanokinetix, Lawrenceville, NJ 08648 USA

Recommended Citation:
Guo, JS,Sun, GQ,Wang, Q,et al. Carbon nanofibers supported Pt-Ru electrocatalysts for direct methanol fuel cells[J]. CARBON,2006,44(1):152-157.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Guo, JS]'s Articles
 [Sun, GQ]'s Articles
 [Wang, Q]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Guo, JS]‘s Articles
 [Sun, GQ]‘s Articles
 [Wang, Q]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Powered by CSpace