Synthesis, characterization and electrocatalytic activity for ethanol oxidation of carbon supported Pt, Pt-Rh, Pt-SnO2 and Pt-Rh-SnO2 nanoclusters

被引：120

作者：

Kowal, A. ^{[1
,2
]}

Gojkovic, S. Lj. ^{[3
]}

Lee, K-S. ^{[4
,5
]}

Olszewski, P. ^{[1
]}

Sung, Y-E. ^{[4
,5
]}

机构：

[1] Polish Acad Sci, Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland

[2] Inst Nonferrous Met Dept Poznan, Cent Lab Batteries & Cells, Poznan, Poland

[3] Univ Belgrade, Fac Technol & Met, Belgrade, Serbia

[4] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea

[5] Seoul Natl Univ, Res Ctr Energy Convers & Storage, Seoul, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 04期

关键词：

Pt-Rh-SnO2; nanocatalyst; Ethanol electrooxidation; Direct ethanol fuel cell; Polyol synthesis; ALCOHOL FUEL-CELLS; SNO2; NANOPARTICLES; CATALYSTS; ELECTROOXIDATION; ELECTRODES; DEMS;

D O I：

10.1016/j.elecom.2009.01.022

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanoclusters of Pt, Pt-Rh, Pt-SnO2 and Pt-Rh-SnO2 were successfully synthesized by polyol method and deposited on high-area carbon. HIRTEM and XRD analysis revealed two phases in the ternary Pt-Rh-SnO2/C catalyst: solid solution of Rh in Pt and SnO2. The activity of Pt-Rh-SnO2/C for ethanol oxidation was found to be much higher than Pt/C and Pt-Rh/C and also superior to Pt-SnO2/C. Quasi steady-state measurements at various temperatures (30-60 degrees C), ethanol concentrations (0.01-1 M) and H2SO4 concentrations (0.02-0.5 M) showed that Pt-Rh-SnO2/C is about 20 times more active than Pt/C in the potential range of interest for the fuel cell application. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：724 / 727

页数：4

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