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Water oxidation by a manganese-potassium cluster: Mn oxide as a kinetically dominant "true" catalyst for water oxidation
IASBS, Dept Chem, Zanjan 4513766731, Iran.
Free Univ Berlin, Fachbereich Phys, Arnimallee 14, D-14195 Berlin, Germany;Univ Sistan & Baluchestan, Dept Phys, Zahedan 9816745845, Iran.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics. Free Univ Berlin, Fachbereich Phys, Arnimallee 14, D-14195 Berlin, Germany;Uppsala Univ, Dept Chem Angstromlab, Lagerhyddsvagen 1, S-75120 Uppsala, Sweden.
Imam Khomeini Int Univ, Dept Chem, Fac Sci, Qazvin 3414896818, Iran.
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2018 (English)In: Catalysis Science & Technology, ISSN 2044-4753, E-ISSN 2044-4761, Vol. 8, no 17, p. 4390-4398Article in journal (Refereed) Published
Abstract [en]

Nature uses an Mn cluster for water oxidation, and thus, water oxidation using Mn clusters is interesting when used in artificial water-splitting systems. An important question is whether an Mn cluster is a true catalyst for water oxidation or not. Herein, an Mn-K cluster was investigated for electrochemical water oxidation to find the true and the kinetically dominant catalyst using X-ray absorption spectroscopy, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and electrochemical methods. The experiments showed that conversion into nanosized Mn oxide occurred for the cluster, and the nanosized Mn oxides are the true catalyst for water oxidation.

Place, publisher, year, edition, pages
2018. Vol. 8, no 17, p. 4390-4398
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-365651DOI: 10.1039/c8cy01151fISI: 000444242800011OAI: oai:DiVA.org:uu-365651DiVA, id: diva2:1263151
Funder
German Research Foundation (DFG), SPP 1613German Research Foundation (DFG), DA 402/7-2Available from: 2018-11-14 Created: 2018-11-14 Last updated: 2018-11-14Bibliographically approved

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