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题名: Synthesis and characterization of platinum catalysts on muldwalled carbon nanotubes by intermittent microwave irradiation for fuel cell applications
作者: Tian, ZQ;  Jiang, SP;  Liang, YM;  Shen, PK
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2006-03-23
DOI: 10.1021/jp056401o
卷: 110, 期:11, 页:5343-5350
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Pt electrocatalysts supported on multiwalled carbon nanotube (Pt/MWCNT) nanocomposites have been synthesized by a rapid intermittent microwave irradiation (IMI) technique for polymer electrolyte and direct methanol fuel cells (PEFCs and DMFCs), using H(2)PtCl(6) as Pt precursor. The Pt/MWCNT nanocomposites are characterized by XRD, XPS, and TEM. The results indicate that Pt particle size and distribution on the MWCNT support are affected significantly by the oxidation treatment of MWCNTs, the IMI procedure, and the MWCNT tube diameter or surface area. The PtO(x) (x = 1, 2) species was first deposited on the surface of MWCNTs by the IMI and subsequently reduced to Pt(0) with refluxing in the presence of HCOOH. Pt/MWCNT nanocomposites synthesized by this IMI method have achieved extremely uniform dispersed Pt nanoparticles with a particle size of similar to 3 nm. Electrochemical measurement indicates that Pt/MWCNT natiocomposites synthesized by the IMI method display a significantly higher electrochemically active area and higher catalytic activity for the methanol oxidation reaction in comparison to a commercial Pt/C catalyst.
关键词[WOS]: HIGH RELATIVE PERFORMANCE ;  PTRU NANOPARTICLES ;  ANODE CATALYST ;  PT/C CATALYSTS ;  DMFC ANODE ;  METHANOL ;  ELECTROOXIDATION ;  ELECTRODES ;  OXIDATION ;  MEMBRANE
语种: 英语
WOS记录号: WOS:000236294300028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139979
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Engn Ctr, Dalian 113023, Peoples R China
3.Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China

Recommended Citation:
Tian, ZQ,Jiang, SP,Liang, YM,et al. Synthesis and characterization of platinum catalysts on muldwalled carbon nanotubes by intermittent microwave irradiation for fuel cell applications[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2006,110(11):5343-5350.
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