期刊
CHEMICAL COMMUNICATIONS
卷 55, 期 34, 页码 4997-5000出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc00726a
关键词
-
资金
- National Natural Science Foundation of China [21575137]
It is of great importance to search for efficient and stable metal-free catalysts toward electrochemical N-2-to-NH3 conversion. In this communication, a chemically oxidized carbon nanotube material (O-CNT) is verified as an active electrocatalyst for the N-2 reduction reaction under ambient conditions. In 0.1 M LiClO4, O-CNT achieves a large NH3 yield of 32.33 g h(-1) mg(cat.)(-1) and a high faradaic efficiency of 12.50% at -0.4 V vs. the reversible hydrogen electrode. It also demonstrates superior stability. Density functional theory calculations suggest that C-O groups play a key role in the electrochemical N-2 fixation.
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