PtRuO2/Ti anodes with a varying Pt:Ru ratio for direct methanol fuel cells

被引：26

作者：

Shao, Zhi-Gang

Zhu, Fuyun

Lin, Wen-Feng

Christensen, Paul A.

Zhang, Huamin

机构：

[1] Univ Newcastle Upon Tyne, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Chinese Acad Sci, Dalian Inst Chem Phys, Beijing 100864, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 161卷 / 02期

关键词：

DMFC; Pt : Ru ratio; PtRuO2/Ti anodes; Ti mesh;

D O I：

10.1016/j.jpowsour.2006.06.037

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：

PtRuO2/Ti anodes with a varying Pt:Ru ratio were prepared by thermal deposition of a PtRuO2 catalyst layer onto a Ti mesh for the direct methanol fuel cell (DMFC). The morphology and structure of the catalyst layers were analyzed by SEM, EDX, and XRD. The catalyst coating layers became porous with increase of the Ru content, and showed oxide and alloy characteristics. The relative activities of the PtRuO2/Ti electrodes were assessed and compared using half-cell tests and single DMFC experiments. The results showed that these electrodes were very active for the methanol oxidation and that the optimum Ru surface coverage was ca. 38% for a DMFC operating at 20-60 degrees C. (c) 2006 Elsevier B.V. All rights reserved.

引用

收藏

页码：813 / 819

页数：7

相关论文

共 32 条

[1] IN-SITU STRUCTURAL CHARACTERIZATION OF A PLATINUM ELECTROCATALYST BY DISPERSIVE-X-RAY ABSORPTION-SPECTROSCOPY [J].

ALLEN, PG ;

CONRADSON, SD ;

WILSON, MS ;

GOTTESFELD, S ;

RAISTRICK, ID ;

VALERIO, J ;

LOVATO, M .

ELECTROCHIMICA ACTA, 1994, 39 (16) :2415-2418

[2] Formation of carbon-supported PtM alloys for low temperature fuel cells: a review [J].

Antolini, E .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 78 (03) :563-573

[3] Performance of DMFC anodes with ultra-low Pt loading [J].

Aricò, AS ;

Baglio, V ;

Modica, E ;

Di Blasi, A ;

Antonucci, V .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (02) :164-169

[4] Effect of Pt-Ru alloy composition on high-temperature methanol electro-oxidation [J].

Aricò, AS ;

Antonucci, PL ;

Modica, E ;

Baglio, V ;

Kim, H ;

Antonucci, V .

ELECTROCHIMICA ACTA, 2002, 47 (22-23) :3723-3732

[5] MECHANISM OF ELECTRO-OXIDATION OF METHANOL ON PLATINUM ELECTRODE [J].

BAGOTZKY, VS ;

VASSILYEW, YB .

ELECTROCHIMICA ACTA, 1967, 12 (09) :1323-+

[6] 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

[7] SURFACE STUDIES OF PT-RU ELECTRODEPOSITS ON GOLD [J].

DEMISHIMA, BAL ;

MISHIMA, HT ;

CASTRO, G .

ELECTROCHIMICA ACTA, 1995, 40 (15) :2491-2500

[8] Measurement of the Ru surface content of electrocodeposited PtRu electrodes with the electrochemical quartz crystal microbalance: Implications for methanol and CO electrooxidation [J].

Frelink, T ;

Visscher, W ;

vanVeen, JAR .

LANGMUIR, 1996, 12 (15) :3702-3708

[9] CO adsorption and oxidation on a Pt(111) electrode modified by ruthenium deposition: An IR spectroscopic study [J].

Friedrich, KA ;

Geyzers, KP ;

Linke, U ;

Stimming, U ;

Stumper, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1996, 402 (1-2) :123-128

[10] Fundamental aspects in electrocatalysis: from the reactivity of single-crystals to fuel cell electrocatalysts [J].

Friedrich, KA ;

Geyzers, KP ;

Dickinson, AJ ;

Stimming, U .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 524 :261-272

← 1 2 3 4 →