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A Simple Synthetic Strategy toward Defect‐Rich Porous Monolayer NiFe‐Layered Double Hydroxide Nanosheets for Efficient Electrocatalytic Water Oxidation
Abstract
In this work, porous monolayer nickel‐iron layered double hydroxide (PM‐LDH) nanosheets with a lateral size of ≈30 nm and a thickness of ≈0.8 nm are successfully synthesized by a facile one‐step strategy. Briefly, an aqueous solution containing Ni 2+ and Fe 3+ is added dropwise to an aqueous formamide solution at 80 °C and pH 10, with the PM‐LDH product formed within only 10 min. This fast synthetic strategy introduces an abundance of pores in the monolayer NiFe‐LDH nanosheets, resulting in PM‐LDH containing high concentration of oxygen and cation vacancies, as is confirmed by extended X‐ray absorption fine structure and electron spin resonance measurements. The oxygen and cation vacancies in PM‐LDH act synergistically to increase the electropositivity of the LDH nanosheets, while also enhancing H 2 O adsorption and bonding strength of the OH* intermediate formed during water electrooxidation, endowing PM‐LDH with outstanding performance for the oxygen evolution reaction (OER). PM‐LDH offers a very low overpotential (230 mV) for OER at a current density of 10 mA cm−2, with a Tafel slope of only 47 mV dec−1, representing one of the best OER performance yet reported for a NiFe‐LDH system. The results encourage the wider utilization of porous monolayer LDH nanosheets in electrocatalysis, catalysis, and solar cells.
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Cites
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces
Man, I. C., Su, H., Calle‐Vallejo, F., Hansen, H. A., Martínez, J. I., Inoglu, N. G., Kitchin, J., Jaramillo, T. F., Nørskov, J. K., & Rossmeisl, J. (2011) · ChemCatChem · doi:10.1002/cctc.201000397 · Cited by 4,769
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
Homogeneously dispersed multimetal oxygen-evolving catalysts
Zhang, B., Zheng, X., Voznyy, O., Comin, R., Bajdich, M., García-Melchor, M., Han, L., Xu, J., Liu, M., Zheng, L., et al. (2016) · Science · doi:10.1126/science.aaf1525 · Cited by 2,447
Jia, X., Zhao, Y., Chen, G., Shang, L., Shi, R., Kang, X., Waterhouse, G. I. N., Wu, L., Tung, C., & Zhang, T. (2016) · Advanced Energy Materials · doi:10.1002/aenm.201502585 · Cited by 773
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Cited by
Chatenet, M., Pollet, B. G., Dekel, D. R., Dionigi, F., Deseure, J., Millet, P., Braatz, R. D., Bazant, M. Z., Eikerling, M., Staffell, I., et al. (2022) · Chemical Society Reviews · doi:10.1039/d0cs01079k · Cited by 2,025
Yu, L., Wu, L., McElhenny, B., Song, S., Luo, D., Zhang, F., Yu, Y., Chen, S., & Ren, Z. (2020) · Energy & Environmental Science · doi:10.1039/d0ee00921k · Cited by 877
Gu, Y., Wu, A., Jiao, Y., Zheng, H., Wang, X., Xie, Y., Wang, L., Tian, C., & Fu, H. (2021) · Angewandte Chemie International Edition · doi:10.1002/anie.202016102 · Cited by 363
Recent progress in transition metal selenide electrocatalysts for water splitting
Xia, X., Wang, L., Sui, N., Colvin, V. L., & Yu, W. W. (2020) · Nanoscale · doi:10.1039/d0nr02939d · Cited by 336
Activated Ni–OH Bonds in a Catalyst Facilitates the Nucleophile Oxidation Reaction
Chen, W., Wang, Y., Wu, B., Shi, J., Li, Y., Xu, L., Xie, C., Zhou, W., Huang, Y., Wang, T., et al. (2022) · Advanced Materials · doi:10.1002/adma.202105320 · Cited by 200
Metadata
- Authors
- Zhang, X., Zhao, Y., Zhao, Y., Shi, R., Waterhouse, G. I. N., & Zhang, T.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2019-05-10
- Volume
- 9
- Issue
- 24
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2943896409
- Cited by
- 480
- References
- 4
- FWCI
- 14.79
- Type
- journal article
- Language
- en
- Open access
- closed
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