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Low-Overpotential High-Activity Mixed Manganese and Ruthenium Oxide Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media
Abstract
Mixed Mn/Ru oxide thermally prepared electrodes using different compositions of Mn and Ru precursor salts have been fabricated on Ti supports via thermal decomposition at two annealing temperatures. Subsequently, the oxygen evolution reaction (OER) activities of these electrodes were determined. A majority of the mixed Mn/Ru catalysts are highly active for the OER, exhibiting lower overpotential values compared to those of the state-of-the-art RuO 2 and IrO 2 type materials, when measured at a current density of 10 mA cm –2 . These Mn/Ru oxide materials are also cheaper to produce than the aforementioned platinum group materials, therefore rendering the Mn/Ru materials more practical and economical. The Mn/Ru catalysts are also evaluated with respect to their Tafel slopes and turnover frequency numbers. Interestingly, scanning electron microscopy reveals that the morphologies of the electrodes change to a mud-cracked morphology, similar to that of the RuO 2, with minimal amounts of the Ru precursor salt added to the Mn salt. Fourier transform infrared spectroscopy and X-ray diffraction show that the Mn material fabricated in this study at the two annealing temperatures is largely Mn 3 O 4, while the Ru material is predominately RuO 2 . X-ray photoelectron spectroscopy was also used to investigate the Mn and Ru composition ratios in each of the films.
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Cites
Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction
McCrory, C. C. L., Jung, S., Peters, J. C., & Jaramillo, T. F. (2013) · Journal of the American Chemical Society · doi:10.1021/ja407115p · Cited by 7,026
McCrory, C. C. L., Jung, S., Ferrer, I. M., Chatman, S. M., Peters, J. C., & Jaramillo, T. F. (2015) · Journal of the American Chemical Society · doi:10.1021/ja510442p · Cited by 4,145
Cited by
Recent Advances and Prospective in Ruthenium-Based Materials for Electrochemical Water Splitting
Yu, J., He, Q., Yang, G., Zhou, W., Shao, Z., & Ni, M. (2019) · ACS Catalysis · doi:10.1021/acscatal.9b02457 · Cited by 789
Layered and two dimensional metal oxides for electrochemical energy conversion
Browne, M. P., Sofer, Z., & Pumera, M. (2019) · Energy & Environmental Science · doi:10.1039/c8ee02495b · Cited by 396
Self-citationConnor, P., Schuch, J., Kaiser, B., & Jaegermann, W. (2020) · Zeitschrift für Physikalische Chemie · doi:10.1515/zpch-2019-1514 · Cited by 351
Wang, Y., Xie, C., Liu, D., Huang, X., Huo, J., & Wang, S. (2016) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.6b05811 · Cited by 315
Wang, Y., Liu, D., Liu, Z., Xie, C., Huo, J., & Wang, S. (2016) · Chemical Communications · doi:10.1039/c6cc06608a · Cited by 284
Metadata
- Authors
- Browne, M. P., Nolan, H., Duesberg, G. S., Colavita, P. E., & Lyons, M. E. G.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-03-09
- Volume
- 6
- Issue
- 4
- Pages
- 2408-2415
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2288963499
- Cited by
- 169
- References
- 2
- FWCI
- 6.08
- Type
- journal article
- Language
- en
- Open access
- closed
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- Browne, M. P., Nolan, H., Duesberg, G. S., Colavita, P. E., & Lyons, M. E. G. (2016). Low-Overpotential High-Activity Mixed Manganese and Ruthenium Oxide Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media. ACS Catalysis. https://doi.org/10.1021/acscatal.5b02069
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