Water oxidation by a manganese–potassium cluster: Mn oxide as a kinetically dominant "true" catalyst for water oxidation. Issue 17 (9th August 2018)

• Record Type: Journal Article
• Authors: Mousazade, Younes; Mohammadi, Mohammad Reza; Chernev, Petko; Bikas, Rahman; Bagheri, Robabeh; Song, Zhenlun; Lis, Tadeusz; Dau, Holger; Najafpour, Mohammad Mahdi
• Is Part Of: Catalysis science & technology. Volume 8:Issue 17(2018)
• Page Start: 4390
• Page End: 4398
• Publication Date: 2018-08-09
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c8cy01151f
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : Herein, a manganese–potassium cluster was investigated for electrochemical water oxidation to find the true, kinetically dominant, catalyst. Abstract : 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.