Self-Poisoning Dynamical Effects in the Oxygen Reduction Reaction on Pt(111) from a Top-Down Kinetic Analysis

被引：12

作者：

Bonnet, Nicephore ^{[1
,2
]}

Otani, Minoru ^{[1
]}

Sugino, Osamu ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 25期

关键词：

DENSITY-FUNCTIONAL THEORY; ELECTROCHEMICAL OXIDATION; WATER FORMATION; PLATINUM; SURFACE; ADSORPTION; INTERMEDIATE; ELECTROLYTE; ELECTROREDUCTION; ELECTROCATALYSIS;

D O I：

10.1021/jp502807z

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：

A kinetic analysis of the oxygen reduction reaction (ORR) on Pt(111) is performed from available experimental data and is checked against first-principles results. We find that although the ORR proceeds mainly through the associative pathway, the dissociative pathway may play a key role in poisoning the catalyst surface prior to steady state. The present analysis, therefore, highlights the potential significance of dynamical effects inside the ORR, which motivates the fast development of highly space- and time-resolved probing techniques.

引用

页码：13638 / 13643

页数：6

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