Active Mixed-Valent MnOx Water Oxidation Catalysts through Partial Oxidation (Corrosion) of Nanostructured MnO Particles

被引：256

作者：

Indra, Arindam ^{[1
]}

Menezes, Prashanth W. ^{[1
]}

Zaharieva, Ivelina ^{[2
]}

Baktash, Elham ^{[1
]}

Pfrommer, Johannes ^{[1
]}

Schwarze, Michael ^{[1
]}

Dau, Holger ^{[2
]}

Driess, Matthias ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Chem Met Organ Chem & Anorgan Mat, D-10623 Berlin, Germany

[2] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 50期

关键词：

electrochemistry; metal oxide catalysis; oxygen evolution reaction; photochemistry; water splitting; RAY-ABSORPTION SPECTROSCOPY; MANGANESE OXIDE; PHOTOSYSTEM-II; COMPLEX; MODEL; RESOLUTION; CHEMISTRY; EFFICIENT;

D O I：

10.1002/anie.201307543

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Yes, we CAN: Partial oxidation of inactive MnO nanoparticles by Ce IV as oxidant gives active MnOx catalysts that are suitable for effective photochemical and electrochemical water oxidation. The active MnOx catalyst contains mixed-valent MnII, Mn III, and MnIV species (see picture; green and violet) interconnected through oxido bridges (red) with defects and disorders. MnO x is analogous to calcium-manganese oxide systems where the calcium sites are replaced by MnII or MnIII ions. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：13206 / 13210

页数：5

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