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

V. Giordani; S. A. Freunberger; P. G. Bruce; J. M. Tarascon; D. Larcher

doi:10.1149/1.3494045

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

V. Giordani^*, S. A. Freunberger, P. G. Bruce, J. M. Tarascon, D. Larcher

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The decomposition reaction of H₂O₂ aqueous solutions (H₂O₂ → H₂O+ 1/2 O₂) catalyzed by transition metal oxide powders has been compared with the charging voltage of nonaqueous Li-O₂ cells containing the same catalyst. An inverse linear relationship between Ln k (rate constant for the H₂O ₂ 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-O₂ battery and may ultimately give insight into the charging mechanism.

Original language	English
Pages (from-to)	A180-A183
Journal	Electrochemical and Solid-State Letters
Volume	13
Issue number	12
DOIs	https://doi.org/10.1149/1.3494045
Publication status	Published - 29 Oct 2010
Externally published	Yes

ASJC Scopus subject areas

General Chemical Engineering
General Materials Science
Physical and Theoretical Chemistry
Electrical and Electronic Engineering
Electrochemistry

Fields of Expertise

Advanced Materials Science

Access to Document

10.1149/1.3494045

Cite this

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title = "H2O2 Decomposition Reaction as Selecting Tool for Catalysts in Li-O2 Cells",

abstract = "The decomposition reaction of H2O2 aqueous solutions (H2O2 → H2O+ 1/2 O2) catalyzed by transition metal oxide powders has been compared with the charging voltage of nonaqueous Li-O2 cells containing the same catalyst. An inverse linear relationship between Ln k (rate constant for the H2O 2 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-O2 battery and may ultimately give insight into the charging mechanism.",

author = "V. Giordani and Freunberger, {S. A.} and Bruce, {P. G.} and Tarascon, {J. M.} and D. Larcher",

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AU - Giordani, V.

AU - Freunberger, S. A.

AU - Bruce, P. G.

AU - Tarascon, J. M.

AU - Larcher, D.

PY - 2010/10/29

Y1 - 2010/10/29

N2 - The decomposition reaction of H2O2 aqueous solutions (H2O2 → H2O+ 1/2 O2) catalyzed by transition metal oxide powders has been compared with the charging voltage of nonaqueous Li-O2 cells containing the same catalyst. An inverse linear relationship between Ln k (rate constant for the H2O 2 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-O2 battery and may ultimately give insight into the charging mechanism.

AB - The decomposition reaction of H2O2 aqueous solutions (H2O2 → H2O+ 1/2 O2) catalyzed by transition metal oxide powders has been compared with the charging voltage of nonaqueous Li-O2 cells containing the same catalyst. An inverse linear relationship between Ln k (rate constant for the H2O 2 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-O2 battery and may ultimately give insight into the charging mechanism.

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