In:
Angewandte Chemie, Wiley, Vol. 130, No. 49 ( 2018-12-03), p. 16216-16221
Abstract:
An effective chemical way to optimize the oxygen electrocatalyst and Li‐O 2 electrode functionalities of metal oxide can be developed by the control of chemical bond nature with the surface anchoring of highly oxidized selenate (SeO 4 2− ) clusters. The bond competition between (Se 6+ −O) and (Mn−O) bonds is quite effective in stabilizing Jahn–Teller‐active Mn 3+ state and in increasing oxygen electron density of α‐MnO 2 nanowire (NW). The selenate‐anchored α‐MnO 2 NW shows excellent oxygen electrocatalytic activity and electrode performance for Li‐O 2 batteries, which is due to the improved charge transfer kinetics and reversible formation/decomposition of Li 2 O 2 . The present study underscores that the surface anchoring of highly oxidized cluster can provide a facile, effective way of improving the oxygen electrocatalyst and electrochemical performances of nanostructured metal oxide in Li‐O 2 cells.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v130.49
DOI:
10.1002/ange.201809205
Language:
English
Publisher:
Wiley
Publication Date:
2018
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