Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 13, Issue 12, Pages A180-A183Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3494045
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Funding
- Engineering and Physical Sciences Research Council [EP/H019596/1] Funding Source: researchfish
- EPSRC [EP/H019596/1] Funding Source: UKRI
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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.
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