Boosting photocatalytic overall water splitting by Co doping into Mn3O4 nanoparticles as oxygen evolution cocatalystsElectronic supplementary information (ESI) available: TEM images of CoyMn1yO NPs using different Co precursors and photo-deposited Rh@Cr2O3 on SrTiO3. See DOI: 10.1039/c8nr00377g

Boosting photocatalytic overall water splitting by Co doping into Mn3O4 nanoparticles as oxygen... The effect of cobalt doping into a manganese oxide (tetragonal spinel Mn3O4) nanoparticle cocatalyst up to Co/(Co + Mn) = 0.4 (mol/mol) on the activity of photocatalytic water oxidation was studied. Monodisperse 10 nm CoyMn1yO (0 y 0.4) nanoparticles were uniformly loaded onto photocatalysts and converted to CoxMn3xO4 nanoparticles through calcination. 40 mol% cobalt-doped Mn3O4 nanoparticle-loaded Rh@Cr2O3/SrTiO3 photocatalyst exhibited 1.8 times-higher overall water splitting activity than that with pure Mn3O4 nanoparticles. Investigation on the band structure and electrocatalytic water oxidation activity of CoxMn3xO4 nanoparticles revealed that the Co doping mainly contributes to the improvement of water oxidation kinetics on the surface of the cocatalyst nanoparticles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nanoscale Royal Society of Chemistry

Boosting photocatalytic overall water splitting by Co doping into Mn3O4 nanoparticles as oxygen evolution cocatalystsElectronic supplementary information (ESI) available: TEM images of CoyMn1yO NPs using different Co precursors and photo-deposited Rh@Cr2O3 on SrTiO3. See DOI: 10.1039/c8nr00377g

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
2040-3364
D.O.I.
10.1039/c8nr00377g
Publisher site
See Article on Publisher Site

Abstract

The effect of cobalt doping into a manganese oxide (tetragonal spinel Mn3O4) nanoparticle cocatalyst up to Co/(Co + Mn) = 0.4 (mol/mol) on the activity of photocatalytic water oxidation was studied. Monodisperse 10 nm CoyMn1yO (0 y 0.4) nanoparticles were uniformly loaded onto photocatalysts and converted to CoxMn3xO4 nanoparticles through calcination. 40 mol% cobalt-doped Mn3O4 nanoparticle-loaded Rh@Cr2O3/SrTiO3 photocatalyst exhibited 1.8 times-higher overall water splitting activity than that with pure Mn3O4 nanoparticles. Investigation on the band structure and electrocatalytic water oxidation activity of CoxMn3xO4 nanoparticles revealed that the Co doping mainly contributes to the improvement of water oxidation kinetics on the surface of the cocatalyst nanoparticles.

Journal

NanoscaleRoyal Society of Chemistry

Published: Apr 4, 2018

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