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Jia-Yi Fang, Qizheng Zheng, Yao‐Yin Lou, Kuangmin Zhao, Sheng-Nan Hu, Guang Li, Ouardia Akdim, Xiaoyang Jerry Huang, Shi‐Gang Sun
The development of electrocatalysts capable of efficient reduction of nitrate (NO 3 − ) to ammonia (NH 3 ) is drawing increasing interest for the sake of low carbon emission and environmental protection. Herein, we present a CuCo bimetallic catalyst able to imitate the bifunctional nature of copper-type nitrite reductase, which could easily remove NO 2 − via the collaboration of two active centers. Indeed, Co acts as an electron/proton donating center, while Cu facilitates NO x − adsorption/association. The bio-inspired CuCo nanosheet electrocatalyst delivers a 100 ± 1% Faradaic efficiency at an ampere-level current density of 1035 mA cm −2 at −0.2 V vs . Reversible Hydrogen Electrode. The NH 3 production rate reaches a high activity of 4.8 mmol cm −2 h −1 (960 mmol g cat −1 h −1 ). A mechanistic study, using electrochemical in situ Fourier transform infrared spectroscopy and shell-isolated nanoparticle enhanced Raman spectroscopy, reveals a strong synergy between Cu and Co, with Co sites promoting the hydrogenation of NO 3 − to NH 3 via adsorbed *H species. The well-modulated coverage of adsorbed *H and *NO 3 led simultaneously to high NH 3 selectivity and yield.
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Fang, J.-Y., Zheng, Q., Lou, Y., Zhao, K., Hu, S.-N., Li, G., Akdim, O., Huang, X. J., & Sun, S. (2022). Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature. Nature Communications, 13(1), 7899. https://doi.org/10.1038/s41467-022-35533-6
Fang, Jia-Yi, et al. "Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature." Nature Communications, vol. 13, no. 1, 2022, pp. 7899, https://doi.org/10.1038/s41467-022-35533-6.
Fang, Jia-Yi, Qizheng Zheng, Yao‐Yin Lou, Kuangmin Zhao, Sheng-Nan Hu, Guang Li, Ouardia Akdim, Xiaoyang Jerry Huang, and Shi‐Gang Sun. "Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature." Nature Communications 13, no. 1 (2022): 7899. https://doi.org/10.1038/s41467-022-35533-6.
Fang J.-Y., Zheng Q., Lou Y. [и др.] Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature // Nature Communications. — 2022. — Vol. 13, № 1. — P. 7899. — URL: https://doi.org/10.1038/s41467-022-35533-6
@article{fang2022amperelevel,
title = {{Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature}},
author = {Jia-Yi Fang and Qizheng Zheng and Yao‐Yin Lou and Kuangmin Zhao and Sheng-Nan Hu and Guang Li and Ouardia Akdim and Xiaoyang Jerry Huang and Shi‐Gang Sun},
journal = {Nature Communications},
year = {2022},
volume = {13},
number = {1},
pages = {7899},
doi = {10.1038/s41467-022-35533-6},
url = {https://doi.org/10.1038/s41467-022-35533-6}
}TY - JOUR AU - Fang, Jia-Yi AU - Zheng, Qizheng AU - Lou, Yao‐Yin AU - Zhao, Kuangmin AU - Hu, Sheng-Nan AU - Li, Guang AU - Akdim, Ouardia AU - Huang, Xiaoyang Jerry AU - Sun, Shi‐Gang TI - Ampere-level current density ammonia electrochemical synthesis using CuCo nanosheets simulating nitrite reductase bifunctional nature JO - Nature Communications VL - 13 IS - 1 SP - 7899 PY - 2022 DA - 2022/12/22 DO - 10.1038/s41467-022-35533-6 UR - https://doi.org/10.1038/s41467-022-35533-6 ER -
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