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Nano-sized Mn3O4 and β-MnOOH from the decomposition of β-cyclodextrin-Mn: 2. The water-oxidizing activities

Paper ID Volume ID Publish Year Pages File Format Full-Text
29549 44421 2015 7 PDF Available
Title
Nano-sized Mn3O4 and β-MnOOH from the decomposition of β-cyclodextrin-Mn: 2. The water-oxidizing activities
Abstract

•Nano-sized Mn oxides containing Mn3O4 and β-MnOOH have been prepared.•Mn3O4 and β-MnOOH have been considered for water oxidation.•β-MnOOH prepared at 450 °C is a good water-oxidizing catalyst among these Mn oxides.•Water-oxidizing activities of these compounds are compared to the other Mn oxides.

Nano-sized Mn oxides contain Mn3O4, β-MnOOH and Mn2O3 have been prepared by a previously reported method using thermal decomposition of β-cyclodextrin-Mn complexes. In the next step, the water-oxidizing activities of these Mn oxides using cerium(IV) ammonium nitrate as a chemical oxidant are studied. The turnover frequencies for β-MnO(OH) and Mn3O4 are 0.24 and 0.01–0.17 (mmol O2/mol Mn s), respectively. Subsequently, water-oxidizing activities of these compounds are compared to the other previously reported Mn oxides. Important factors affecting water oxidation by these Mn oxides are also discussed.

Graphical abstractThe water-oxidizing activities of nano-sized Mn oxides contain Mn3O4, β-MnOOH and Mn2O3 in the presence of cerium(IV) ammonium nitrate as a chemical oxidant are reported.Figure optionsDownload full-size imageDownload as PowerPoint slide

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Nano-sized Mn3O4 and β-MnOOH from the decomposition of β-cyclodextrin-Mn: 2. The water-oxidizing activities
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 152, Part A, November 2015, Pages 112–118
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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