H2O2 Decomposition Reaction as Selecting Tool for Catalysts in Li-O2 Cells

被引：86

作者：

Giordani, V. ^{[1
,2
,3
]}

Freunberger, S. A. ^{[2
]}

Bruce, P. G. ^{[2
,3
]}

Tarascon, J-M ^{[1
,3
]}

Larcher, D. ^{[1
,3
]}

机构：

[1] Univ Picardie Jules Verne, Lab React & Chim Solides, CNRS, UMR6007, F-80039 Amiens, France

[2] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[3] Federat Rech CNRS 3104, ALISTORE European Res Inst, F-80039 Amiens, France

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

HYDROGEN-PEROXIDE; AIR BATTERIES; LITHIUM; PERFORMANCE;

D O I：

10.1149/1.3494045

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The decomposition reaction of H2O2 aqueous solutions (H2O2 -> H2O + 1/2O(2)) catalyzed by transition metal oxide powders has been compared with the charging voltage of nonaqueous Li-O-2 cells containing the same catalyst. An inverse linear relationship between Ln k (rate constant for the H2O2 decomposition) and the charging voltage has been found, despite differences in media and possible mechanistic differences. The results suggest that the H2O2 decomposition may be a reliable, useful, and fast screening tool for materials that promote the charging process of the Li-O-2 battery and may ultimately give insight into the charging mechanism. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3494045] All rights reserved.

引用

页码：A180 / A183

页数：4

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