Issue 8, 2016

Benchmarking nanoparticulate metal oxide electrocatalysts for the alkaline water oxidation reaction

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

Supplementary files

Article information

Article type
Paper
Submitted
22 sep 2015
Accepted
25 nov 2015
First published
27 nov 2015
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2016,4, 3068-3076

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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