In:
ChemSusChem, Wiley, Vol. 10, No. 22 ( 2017-11-23), p. 4472-4478
Abstract:
The development of manganese‐based water oxidation electrocatalysts is desirable for the production of solar fuels, as manganese is earth‐abundant, inexpensive, non‐toxic, and has been employed by the Photosystem II in nature for a billion years. Herein, we directly constructed a 3 D nanoarchitectured turbostratic δ‐MnO x on carbon nanotube‐modified nickel foam (MnO x /CNT/NF) by electrodeposition and a subsequent annealing process. The MnO x /CNT/NF electrode gives a benchmark catalytic current density (10 mA cm −2 ) at an overpotential ( η ) of 270 mV under alkaline conditions. A steady current density of 19 mA cm −2 is obtained during electrolysis at 1.53 V for 1.0 h. To the best of our knowledge, this work represents the most efficient manganese‐oxide‐based water oxidation electrode and demonstrates that manganese oxides, as a structural and functional model of oxygen‐evolving complex (OEC) in Photosystem II, can also become comparable to those of most Ni‐ and Co‐based catalysts.
Type of Medium:
Online Resource
ISSN:
1864-5631
,
1864-564X
DOI:
10.1002/cssc.201700824
Language:
English
Publisher:
Wiley
Publication Date:
2017
detail.hit.zdb_id:
2411405-4
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