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Issue 27, 2014
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Beyond the volcano limitations in electrocatalysis – oxygen evolution reaction

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Abstract

Oxygen evolution catalysis is restricted by the interdependence of adsorption energies of the reaction intermediates and the surface reactivity. The interdependence reduces the number of degrees of freedom available for catalyst optimization. Here it is demonstrated that this limitation can be removed by active site modification. This can be achieved on ruthenia by incorporation of Ni or Co into the surface, which activates a proton donor–acceptor functionality on the conventionally inactive bridge surface sites. This enhances the actual measured oxygen evolution activity of the catalyst significantly compared to conventional ruthenia.

Graphical abstract: Beyond the volcano limitations in electrocatalysis – oxygen evolution reaction

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Article information


Submitted
07 Feb 2014
Accepted
11 Mar 2014
First published
12 Mar 2014

Phys. Chem. Chem. Phys., 2014,16, 13682-13688
Article type
Paper
Author version available

Beyond the volcano limitations in electrocatalysis – oxygen evolution reaction

N. B. Halck, V. Petrykin, P. Krtil and J. Rossmeisl, Phys. Chem. Chem. Phys., 2014, 16, 13682
DOI: 10.1039/C4CP00571F

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