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High-performance artificial nitrogen fixation at ambient conditions using a metal-free electrocatalyst
Open accessAbstract
Conversion of naturally abundant nitrogen to ammonia is a key (bio)chemical process to sustain life and represents a major challenge in chemistry and biology. Electrochemical reduction is emerging as a sustainable strategy for artificial nitrogen fixation at ambient conditions by tackling the hydrogen- and energy-intensive operations of the Haber–Bosch process. However, it is severely challenged by nitrogen activation and requires efficient catalysts for the nitrogen reduction reaction. Here we report that a boron carbide nanosheet acts as a metal-free catalyst for high-performance electrochemical nitrogen-to-ammonia fixation at ambient conditions. The catalyst can achieve a high ammonia yield of 26.57 μg h–1 mg–1cat. and a fairly high Faradaic efficiency of 15.95% at –0.75 V versus reversible hydrogen electrode, placing it among the most active aqueous-based nitrogen reduction reaction electrocatalysts. Notably, it also shows high electrochemical stability and excellent selectivity. The catalytic mechanism is assessed using density functional theory calculations.
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Single atom electrocatalysts supported on graphene or graphene-like carbons
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Pu, Z., Liu, T., Amiinu, I. S., Cheng, R., Wang, P., Zhang, C., Ji, P., Hu, W., Liu, J., & Mu, S. (2020) · Advanced Functional Materials · doi:10.1002/adfm.202004009 · Cited by 604
Greatly Improving Electrochemical N 2 Reduction over TiO 2 Nanoparticles by Iron Doping
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Prospects and Challenges for Solar Fertilizers
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Metadata
- Authors
- Qiu, W., Xie, X.-Y., Qiu, J., Fang, W.-H., Liang, R., Ren, X., Ji, X., Cui, G., Asiri, A. M., Cui, G., Tang, B., & Sun, X.
- Venue
- Nature Communications
- Published
- 2018-08-28
- Volume
- 9
- Issue
- 1
- Pages
- 3485-3485
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2888741751
- Cited by
- 759
- References
- 4
- FWCI
- 25.52
- Type
- journal article
- Language
- en
- Open access
- gold
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- Qiu, W., Xie, X.-Y., Qiu, J., Fang, W.-H., Liang, R., Ren, X., Ji, X., Cui, G., Asiri, A. M., Cui, G., Tang, B., & Sun, X. (2018). High-performance artificial nitrogen fixation at ambient conditions using a metal-free electrocatalyst. Nature Communications. https://doi.org/10.1038/s41467-018-05758-5
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