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Microstructure Effects on the Water Oxidation Activity of Co3O4/Porous Silica Nanocomposites

TitleMicrostructure Effects on the Water Oxidation Activity of Co3O4/Porous Silica Nanocomposites
Publication TypeJournal Article
Year of Publication2015
AuthorsLin, CC, Guo, YJ, Vela, J
JournalAcs Catalysis
Volume5
Pagination1037-1044
Date Published02
Type of ArticleArticle
ISBN Number2155-5435
Accession NumberWOS:000349275300062
Keywordsco3o4 nanoparticles, Co3O4/SiO2 core/shells, cobalt-oxide, efficient, electrocatalysts, evolving catalysts, hydrodynamic radii, microstructure effects, molecular wires, nanocatalysts, nanocomposites, photocatalytic oxygen evolution, progress, recent, surface, water oxidation
Abstract

vity of the medium surrounding the catalyst surface and a consequent increase in the rate of charge transfer; or both. Functionalized Co3O4/mesoporous silica nanocomposites show lower water oxidation activity compared with the parent nonfunctionalized catalyst, likely because of partial pore blocking of the silica support upon surface grafting. A more thorough understanding of the effects of microstructure and permittivity on water oxidation ability will enable the construction of next generation catalysts possessing optimal configuration and better efficiency for water splitting.

DOI10.1021/cs501650j
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