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Atomic coordination environment engineering of bimetallic alloy nanostructures for efficient ammonia electrosynthesis from nitrate
Open accessAbstract
Electrochemical nitrate reduction reaction (NO 3 RR) to ammonia has been regarded as a promising strategy to balance the global nitrogen cycle. However, it still suffers from poor Faradaic efficiency (FE) and limited yield rate for ammonia production on heterogeneous electrocatalysts, especially in neutral solutions. Herein, we report one-pot synthesis of ultrathin nanosheet-assembled RuFe nanoflowers with low-coordinated Ru sites to enhance NO 3 RR performances in neutral electrolyte. Significantly, RuFe nanoflowers exhibit outstanding ammonia FE of 92.9% and yield rate of 38.68 mg h −1 mg cat −1 (64.47 mg h −1 mg Ru −1 ) at −0.30 and −0.65 V (vs. reversible hydrogen electrode), respectively. Experimental studies and theoretical calculations reveal that RuFe nanoflowers with low-coordinated Ru sites are highly electroactive with an increased d-band center to guarantee efficient electron transfer, leading to low energy barriers of nitrate reduction. The demonstration of rechargeable zinc-nitrate batteries with large-specific capacity using RuFe nanoflowers indicates their great potential in next-generation electrochemical energy systems.
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Cited by
Bai, L., Franco, F., Timoshenko, J., Rettenmaier, C., Scholten, F., Jeon, H. S., Yoon, A., Rüscher, M., Herzog, A., Haase, F. T., et al. (2024) · Journal of the American Chemical Society · doi:10.1021/jacs.3c13288 · Cited by 473
Zhang, R., Li, C., Cui, H., Wang, Y., Zhang, S., Li, P., Hou, Y., Guo, Y., Liang, G., Huang, Z., et al. (2023) · Nature Communications · doi:10.1038/s41467-023-43897-6 · Cited by 328
Self-citationWang, H., Jiao, Y., Zhang, G., Ma, W., Fan, W., Liu, X., Zhao, Y., Xie, H., Ma, W., & Zong, X. (2025) · Advanced Functional Materials · doi:10.1002/adfm.202418617 · Cited by 74
Metadata
- Authors
- Wang, Y., Sun, M., Zhou, J., Xiong, Y., Zhang, Q., Ye, C., Wang, X., Lu, P., Feng, T., Hao, F., Liu, F., Wang, J., Ma, Y., Yin, J., Chu, S., Gu, L., Huang, B., & Fan, Z.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2023-07-31
- Volume
- 120
- Issue
- 32
- Pages
- e2306461120-e2306461120
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W4385409468
- Cited by
- 206
- References
- 0
- FWCI
- 9.57
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Wang, Y., Sun, M., Zhou, J., Xiong, Y., Zhang, Q., Ye, C., Wang, X., Lu, P., Feng, T., Hao, F., Liu, F., Wang, J., Ma, Y., Yin, J., Chu, S., Gu, L., Huang, B., & Fan, Z. (2023). Atomic coordination environment engineering of bimetallic alloy nanostructures for efficient ammonia electrosynthesis from nitrate. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2306461120
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