Oxygen reduction at platinum electrodes: The interplay between surface and surroundings properties

被引：25

作者：

Gomez-Marin, Ana M. ^{[1
]}

Feliu, Juan M. ^{[2
]}

机构：

[1] Univ Sao Paulo, Inst Quim Sao Carlos, Fis Quim, Caixa Postal 780,Ave Trabalhador Sao Carlense, BR-13560970 Sao Carlos, SP, Brazil

[2] Univ Alicante, Inst Electroquim, Apt 99, E-03080 Alicante, Spain

来源：

CURRENT OPINION IN ELECTROCHEMISTRY | 2018年 / 9卷

基金：

巴西圣保罗研究基金会;

关键词：

SINGLE-CRYSTAL ELECTRODES; O ADSORBATE FORMATIONS; HYDROGEN-PEROXIDE; DFT CALCULATIONS; WATER-STRUCTURE; PT(111); ADSORPTION; MECHANISM; KINETICS; ELECTROCATALYSIS;

D O I：

10.1016/j.coelec.2018.03.018

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：

In this work, recent progress in the understanding of the mechanism of the oxygen reduction reaction at Pt surfaces is shortly reviewed. Specifically, the presence of a soluble and short-lived intermediate different to H2O2 in the ORR reaction path and the interrelated effect between the surface arrangement, adsorption of oxygen-containing species and water structure in the ORR reactivity in acid environments are discussed. Besides, the influence of the proton concentration on the ORR product distribution, the existence of a chemical step and the possible role of the soluble intermediate as a bifurcation point in the mechanism are also analyzed.

引用

页码：166 / 172

页数：7

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