| Autor: |
Li, Shaoquan, Liu, Yi-Tao, Zhang, Yong-Chao, Du, Yue, Gao, Jian, Zhai, Jingru, Liang, Yue, Han, Caidi, Zhu, Xiao-Dong |
| Zdroj: |
Nano Letters; January 2024, Vol. 24 Issue: 2 p748-756, 9p |
| Abstrakt: |
The electrochemical N2reduction reaction (NRR) is a green and energy-saving sustainable technology for NH3production. However, high activity and high selectivity can hardly be achieved in the same catalyst, which severely restricts the development of the electrochemical NRR. In2Se3with partially occupied p-orbitals can suppress the H2evolution reaction (HER), which shows excellent selectivity in the electrochemical NRR. The presence of VIncan simultaneously provide active sites and confine Re clusters through strong charge transfer. Additionally, well-isolated Re clusters stabilized on In2Se3by the confinement effect of VInresult in Re-VInactive sites with maximum availability. By combining Re clusters and VInas dual sites for spontaneous N2adsorption and activation, the electrochemical NRR performance is enhanced significantly. As a result, the Re-In2Se3-VIn/CC catalyst delivers a high NH3yield rate (26.63 μg h–1cm–2) and high FEs (30.8%) at −0.5 V vs RHE. |
| Databáze: |
Supplemental Index |
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