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

被引：179

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

页码：1159 / 1163

页数：5

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