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Issue 8, 2016
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Benchmarking nanoparticulate metal oxide electrocatalysts for the alkaline water oxidation reaction

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Abstract

Nanoparticulate metal-oxide catalysts are among the most prevalent systems for alkaline water oxidation. However, comparisons of the electrochemical performance of these materials have been challenging due to the different methods of attachment, catalyst loadings, and electrochemical test conditions reported in the literature. Herein, we have leveraged a conventional drop-casting method that allows for the successful adhesion of a wide range of nanoparticulate catalysts to glassy-carbon electrode surfaces. We have applied this adhesion method to prepare catalyst films from 16 crystalline metal-oxide nanoparticles with a constant loading of 0.8 mg cm−2, and evaluated the resulting nanoparticulate films for the oxygen evolution reaction under conditions relevant to an integrated solar fuels device. In general, the activities of the adhered nanoparticulate films are similar to those of thin-film catalysts prepared by electrodeposition or sputtering, achieving 10 mA cm−2 current densities per geometric area at overpotentials of ∼0.35–0.5 V.

Graphical abstract: Benchmarking nanoparticulate metal oxide electrocatalysts for the alkaline water oxidation reaction

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Publication details

The article was received on 22 Sep 2015, accepted on 25 Nov 2015 and first published on 27 Nov 2015


Article type: Paper
DOI: 10.1039/C5TA07586F
Citation: J. Mater. Chem. A, 2016,4, 3068-3076
  • Open access: Creative Commons BY-NC license
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    Benchmarking nanoparticulate metal oxide electrocatalysts for the alkaline water oxidation reaction

    S. Jung, C. C. L. McCrory, I. M. Ferrer, J. C. Peters and T. F. Jaramillo, J. Mater. Chem. A, 2016, 4, 3068
    DOI: 10.1039/C5TA07586F

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