催化作用
电催化剂
法拉第效率
电化学
氧化铟锡
可逆氢电极
电极
产量(工程)
材料科学
氧化物
无机化学
氧化锡
锡
铟
选择性
氧化还原
化学工程
化学
X射线光电子能谱
作者
Ting Wang,Shaoxiong Li,Bingling He,Xiaojuan Zhu,Yonglan Luo,Qian Liu,Tingshuai Li,Siyu Lu,Chen Ye,Abdullah M. Asiri,Xuping Sun
出处
期刊:Chinese Journal of Catalysis
[China Science Publishing & Media Ltd.]
日期:2021-06-01
卷期号:42 (6): 1024-1029
被引量:44
标识
DOI:10.1016/s1872-2067(20)63704-4
摘要
The typical Haber technical process for industrial NH 3 production involves plenty of energy-consumption and large quantities of greenhouse gas emission. In contrast, electrochemical N 2 reduction proffers environment-friendly and energy-efficient avenues to synthesize NH 3 at mild conditions but demands efficient electrocatalysts for the N 2 reduction reaction (NRR). Herein we report for the first time that commercial indium-tin oxide glass (ITO/G) can be used as a catalyst electrode toward artificial N 2 fixation, as it demonstrates excellent selectivity at mild conditions. Such ITO/G delivers excellent NRR performance with a NH 3 yield of 1.06 × 10 −10 mol s −1 cm −2 and a faradaic efficiency of 6.17% at –0.40 V versus the reversible hydrogen electrode (RHE) in 0.5 M LiClO 4 . Furthermore, the ITO/G also possesses good electrochemical stability and durability. Finally, the possible reaction mechanism for the NRR on the ITO catalysts was explored using first-principles calculations. Commercial indium-tin oxide glass acts as an efficient electrocatalyst for the conversion of N 2 to NH 3 in 0.5 M LiClO 4 , achieving a large NH 3 yield of 1.06 × 10 −10 mol s −1 cm −2 and a high FE of 6.17%.
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