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Robust Mesoporous Manganese Oxide Catalysts for Water Oxidation
Abstract
Inspired by the natural oxygen evolution reaction of Photosystem II, the earth-abundant and inexpensive manganese oxides (MnO x ) have been recognized for their great potential as highly efficient and robust materials for water oxidation reaction (WORs). To date, most of the heterogeneous, synthesized MnO x catalysts still exhibit lower activities for WORs, in comparison to RuO 2 and IrO 2 . Herein, we report a single-step and scalable synthesis method for mesoporous MnO x materials that is developed through a soft-templated method. This method allowed precise control of Mn 3+ -rich Mn 2 O 3 structure as well as pore sizes and crystallinity of these mesoporous MnO x . These catalysts were investigated for both photochemical and electrochemical water oxidation, and they presented a superior activity for water oxidation. The highest turnover frequency of 1.05 × 10 –3 s –1 was obtained, which is comparable with those for precious metal oxide based catalysts (RuO 2 and IrO 2 ). Our results illustrate a guideline to the design and synthesis of inexpensive and highly active heterogeneous catalysts for water oxidation.
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Cited by
Ye, C., Li, J.-X., Li, Z.-J., Li, X.-B., Fan, X.-B., Zhang, L.-P., Chen, B., Tung, C.-H., & Wu, L.-Z. (2015) · ACS Catalysis · doi:10.1021/acscatal.5b02185 · Cited by 490
Wu, J., Liu, M., Chatterjee, K., Hackenberg, K. P., Shen, J., Zou, X., Yan, Y., Gu, J., Yang, Y., Lou, J., et al. (2016) · Advanced Materials Interfaces · doi:10.1002/admi.201500669 · Cited by 176
Metadata
- Authors
- Kuo, C.-H., Mosa, I. M., Poyraz, A. S., Biswas, S., El-Sawy, A. M., Song, W., Luo, Z., Chen, S.-Y., Rusling, J. F., He, J., & Suib, S. L.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-02-16
- Volume
- 5
- Issue
- 3
- Pages
- 1693-1699
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2329797616
- Cited by
- 193
- References
- 0
- FWCI
- 8.60
- Type
- journal article
- Language
- en
- Open access
- closed
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