Synthesis of PtRu/carbon nanotube composites in supercritical fluid and their application as an electrocatalyst for direct methanol fuel cells

被引：57

作者：

An, Guimin ^{[1
]}

Yu, Ping ^{[1
]}

Mao, Lanqun ^{[1
]}

Sun, Zhenyu ^{[1
]}

Liu, Zhimin ^{[1
]}

Miao, Shiding ^{[1
]}

Miao, Zhenjiang ^{[1
]}

Ding, Kunlun ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

来源：

CARBON | 2007年 / 45卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.carbon.2006.10.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

PtRu nanoparticles were decorated on multi-walled carbon nanotubes (MWCNTs) using H2PtCl6 and RuCl3 as precursors with the aid of supercritical CO2, and the resulting composites were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy. TEM observation showed that nanoparticles of size about 5 nm were distributed evenly on the MWCNTs, and XRD analysis showed that the particles had a face-centered cubic crystal structure. The loading content of the nanoparticles on the MWCNTs could be adjusted by manipulating the relative ratio of the precursor to MWCNTs. The as-prepared PtRu/MWCNT composites exhibited high activity for methanol electro-oxidation. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：536 / 542

页数：7

共 36 条

[1] Microwave synthesis of polymer-embedded Pt-Ru catalyst for direct methanol fuel cell [J].

Bensebaa, F ;

Farah, AA ;

Wang, DS ;

Bock, C ;

Du, XM ;

Kung, J ;

Le Page, Y .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (32) :15339-15344

[2] Size-selected synthesis of PtRu nano-catalysts: Reaction and size control mechanism [J].

Bock, C ;

Paquet, C ;

Couillard, M ;

Botton, GA ;

MacDougall, BR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :8028-8037

[3] Synthesis of monodisperse Au, Pt, Pd, Ru and Ir nanoparticles in ethylene glycol [J].

Bonet, F ;

Delmas, V ;

Grugeon, S ;

Urbina, RH ;

Silvert, PY ;

Tekaia-Elhsissen, K .

NANOSTRUCTURED MATERIALS, 1999, 11 (08) :1277-1284

[4] Supported mixed metal nanoparticles as electrocatalysts in low temperature fuel cells [J].

Chan, KY ;

Ding, J ;

Ren, JW ;

Cheng, SA ;

Tsang, KY .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (04) :505-516

[5] Methanol electro-oxidation on unsupported Pt-Ru alloys at different temperatures [J].

Chu, D ;

Gilman, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (05) :1685-1690

[6] Synthesis of ion conducting polymer protected nanometer size platinum colloids [J].

Dalmia, A ;

Lineken, CL ;

Savinell, RF .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1998, 205 (02) :535-537

[7] Carbon nanotubes with Pt-Ru catalyst for methanol fuel cell [J].

Frackowiak, E ;

Lota, G ;

Cacciaguerra, T ;

Béguin, F .

ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (01) :129-132

[8] ELLIPSOMETRY AND DEMS STUDY OF THE ELECTROOXIDATION OF METHANOL AT PT AND RU-PROMOTED AND SN-PROMOTED PT [J].

FRELINK, T ;

VISSCHER, W ;

COX, AP ;

VANVEEN, JAR .

ELECTROCHIMICA ACTA, 1995, 40 (10) :1537-1543

[9] Carbon nanotubes coated with alumina as gate dielectrics of field-effect transistors [J].

Fu, L ;

Liu, YQ ;

Liu, ZM ;

Han, BX ;

Cao, LC ;

Wei, DC ;

Yu, G ;

Zhu, DB .

ADVANCED MATERIALS, 2006, 18 (02) :181-+

[10] Beaded cobalt oxide nanoparticles along carbon nanotubes: Towards more highly integrated electronic devices [J].

Fu, L ;

Liu, ZM ;

Liu, YQ ;

Han, BX ;

Hu, PG ;

Cao, LC ;

Zhu, DB .

ADVANCED MATERIALS, 2005, 17 (02) :217-+

← 1 2 3 4 →