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Cited by 387

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Orientation-Dependent Oxygen Evolution on RuO2 without Lattice Exchange

Open access
Stoerzinger, Kelsey A., Diaz-Morales, Oscar, Kolb, Manuel, Rao, Reshma R., Frydendal, Rasmus, Qiao, Liang, Wang, Xiao Renshaw, Halck, Niels Bendtsen, Rossmeisl, Jan, Hansen, Heine A., Vegge, Tejs, Stephens, Ifan E. L., Koper, Marc T. M., Shao-Horn, Yang·2017·ACS Energy Letters

Abstract

RuO 2 catalysts exhibit record activities toward the oxygen evolution reaction (OER), which is crucial to enable efficient and sustainable energy storage. Here we examine the RuO 2 OER kinetics on rutile (110), (100), (101), and (111) orientations, finding (100) the most active. We assess the potential involvement of lattice oxygen in the OER mechanism with online electrochemical mass spectrometry, which showed no evidence of oxygen exchange on these oriented facets in acidic or basic electrolytes. Similar results were obtained for polyoriented RuO 2 films and particles, in contrast to previous work, suggesting lattice oxygen is not exchanged in catalyzing OER on crystalline RuO 2 surfaces. This hypothesis is supported by the correlation of activity with the number of active Ru-sites calculated by density functional theory, where more active facets bind oxygen more weakly. This new understanding of the active sites provides a design strategy to enhance the OER activity of RuO 2 nanoparticles by facet engineering.

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Metadata

Authors
Stoerzinger, K. A., Diaz-Morales, O., Kolb, M., Rao, R. R., Frydendal, R., Qiao, L., Wang, X. R., Halck, N. B., Rossmeisl, J., Hansen, H. A., Vegge, T., Stephens, I. E. L., Koper, M. T. M., & Shao-Horn, Y.
Venue
ACS Energy Letters
Published
2017-03-20
Volume
2
Issue
4
Pages
876-881
ISSN
2380-8195 (ISSN-L)
OpenAlex
W2597898713
Cited by
387
References
2
FWCI
7.40
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Orientation-Dependent Oxygen Evolution on RuO2 without Lattice Exchange. https://app.cochat.ai/papers/10.1021/acsenergylett.7b00135
The paper
Stoerzinger, K. A., Diaz-Morales, O., Kolb, M., Rao, R. R., Frydendal, R., Qiao, L., Wang, X. R., Halck, N. B., Rossmeisl, J., Hansen, H. A., Vegge, T., Stephens, I. E. L., Koper, M. T. M., & Shao-Horn, Y. (2017). Orientation-Dependent Oxygen Evolution on RuO2 without Lattice Exchange. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.7b00135

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