Amorphous metal oxides have garnered renewed interest as heterogeneous water oxidation catalysts in recent years. Electrodeposition is the most common method for making amorphous metal oxide electrocatalyst films, but the method requires procedural modifications to deposit mixed-metal oxides. This has resulted in a very limited number of reports detailing amorphous, mixed-metal oxides. We have introduced a photochemical deposition technique that enables rapid, facile fabrication of a diverse selection of amorphous metal oxides.1 This technique has allowed strategic synthesis of targeted amorphous, mixed metal oxides.2,3 Composition screening has shown that the ability of these complex amorphous materials to catalyze the oxygen evolution reaction varies as a function of composition, similar to crystalline metal oxides analogues.2 This presentation will describe the fabrication and characterization of these amorphous materials, including an analysis of their electrocatalytic performance.(1) Smith, R. D. L.; Prevot, M. S.; Fagan, R. D.; Zhang, Z.; Sedach, P. A.; Siu, M. K. J.; Trudel, S.; Berlinguette, C. P. Science 2013 , 340, 60-63.(2) Smith, R. D. L.; Pr�vot, M. S.; Fagan, R. D.; Trudel, S.; Berlinguette, C. P. J. Am. Chem. Soc. 2013 , 135, 11580-11586.(3) Smith, R. D. L.; Sporinova, B.; Fagan, R. D.; Trudel, S.; Berlinguette, C. P. Chem. Mater. 2014 , 26, 1654-1659.

Photochemical fabrication of amorphous metal oxide electrocatalysts

248th National Meeting (2014)

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