In:
Angewandte Chemie, Wiley, Vol. 127, No. 38 ( 2015-09-14), p. 11383-11387
Abstract:
Development of efficient and affordable electrocatalysts in neutral solutions is paramount importance for the renewable energy. Herein, we report that the oxygen evolution reaction (OER) performance of Co 3 S 4 under neutral conditions can be enhanced by exposed octahedral planes and self‐adapted spin states in atomically thin nanosheets. A HAADF image clearly confirmed that the active octahedra with Jahn–Teller distortions were exposed exclusively. Most importantly, in the atomically thin nanosheets, the spin states of Co 3+ in the octahedral self‐adapt from low‐spin to high‐spin states. As a result, the synergistic effect endow the Co 3 S 4 nanosheets with superior OER performance, with exceptional low onset overpotentials of circa 0.31 V in neutral solutions, which is state‐of‐the‐art among inorganic non‐noble metal compounds.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v127.38
DOI:
10.1002/ange.201505320
Language:
German
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
506609-8
detail.hit.zdb_id:
1479266-7
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