Wang Fengyi, Lv Xu, Zhu Xiaojuan, Du Juan, Lu Siyu, Alshehri Abdulmohsen Ali, Alzahrani Khalid Ahmed, Zheng Baozhan, Sun Xuping
College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
Chem Commun (Camb). 2020 Feb 18;56(14):2107-2110. doi: 10.1039/c9cc09803h. Epub 2020 Jan 24.
Electrochemical N reduction has emerged as a sustainable and eco-friendly route for the artificial synthesis of NH under ambient conditions, but active electrocatalysts are needed to drive the N reduction reaction (NRR). Here, Bi nanodendrites are reported as an efficient NRR electrocatalyst for N to NH conversion with excellent selectivity. In 0.1 M HCl, this catalyst achieves a large NH yield of 25.86 μg h mg and a high faradaic efficiency of 10.8% at -0.60 V and -0.55 V versus a reversible hydrogen electrode, respectively, with high electrochemical durability.
电化学氮还原已成为在环境条件下人工合成氨的一种可持续且环保的途径，但需要活性电催化剂来驱动氮还原反应（NRR）。在此，据报道铋纳米枝晶是一种用于将氮转化为氨的高效NRR电催化剂，具有出色的选择性。在0.1 M HCl中，相对于可逆氢电极，该催化剂在-0.60 V和-0.55 V时分别实现了25.86 μg h mg的高氨产率和10.8%的高法拉第效率，且具有高电化学耐久性。
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