The Role of Bridge-Bonded Adsorbed Formate in the Electrocatalytic Oxidation of Formic Acid on Platinum

被引：173
|
作者：
Osawa, Masatoshi [1 ]
Komatsu, Kei-ichi [1 ]
Samjeske, Gabor [1 ]
Uchida, Taro [1 ]
Ikeshoji, Tamio [2 ]
Cuesta, Angel [3 ]
Gutierrez, Claudio [3 ]
机构：
[1] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan
[2] Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, Japan
[3] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2011年 / 50卷 / 05期
关键词：
electrochemistry; formic acid; heterogeneous catalysis; platinum; surface chemistry; GALVANOSTATIC ELECTROOXIDATION; POLYCRYSTALLINE PLATINUM; POTENTIAL OSCILLATIONS; ACTIVE INTERMEDIATE; HCOOH OXIDATION; SURFACE; ABSORPTION; MECHANISM; DECOMPOSITION; SPECTROSCOPY;
D O I：
10.1002/anie.201004782
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A bridge too far: Time-resolved surface-enhanced infrared spectroscopy (SEIRAS) coupled with chronoamperometry shows that formic acid is oxidized via bridge-bonded adsorbed formate, and that formate decomposition is the rate-determining step in the electrooxidation of formic acid to CO2 on Pt. The contribution of direct oxidation of formic acid via weakly adsorbed HCOOH is negligible at best. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：1159 / 1163
页数：5
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