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Issue 96, 2019
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Dendritic Cu: a high-efficiency electrocatalyst for N2 fixation to NH3 under ambient conditions

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Abstract

The artificial N2 fixation to NH3 is dominated by the traditional Haber–Bosch process, which consumes large amounts of energy and natural gas with low energy efficiency and large amounts of CO2 emissions. Electrochemical N2 reduction is a promising and environmentally friendly route for artificial N2-to-NH3 fixation under milder conditions. Herein, we report that dendritic Cu acts as a highly active electrocatalyst to catalyze N2 to NH3 fixation under ambient conditions. When tested in 0.1 M HCl, such an electrocatalyst achieves a high faradaic efficiency of 15.12% and a large NH3 yield rate of 25.63 μg h−1 mgcat.−1 at −0.40 V versus a reversible hydrogen electrode. Notably, this catalyst shows high electrochemical stability and excellent selectivity toward NH3 synthesis.

Graphical abstract: Dendritic Cu: a high-efficiency electrocatalyst for N2 fixation to NH3 under ambient conditions

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Publication details

The article was received on 21 Oct 2019, accepted on 11 Nov 2019 and first published on 11 Nov 2019


Article type: Communication
DOI: 10.1039/C9CC08234D
Chem. Commun., 2019,55, 14474-14477

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    Dendritic Cu: a high-efficiency electrocatalyst for N2 fixation to NH3 under ambient conditions

    C. Li, S. Mou, X. Zhu, F. Wang, Y. Wang, Y. Qiao, X. Shi, Y. Luo, B. Zheng, Q. Li and X. Sun, Chem. Commun., 2019, 55, 14474
    DOI: 10.1039/C9CC08234D

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