FeOOH quantum dots decorated graphene sheet: An efficient electrocatalyst for ambient N2 reduction
FeOOH quantum dots decorated graphene sheet, N2 reduction reaction, NH3 electrosynthesis, ambient conditions
Electrochemical N2 reduction offers a promising alternative to the Haber–Bosch process for sustainable NH3 synthesis at ambient conditions, but it needs efficient catalysts for the N2 reduction reaction (NRR). Here, we report that FeOOH quantum dots decorated graphene sheet acts as a superior catalyst toward enhanced electrocatalytic N2 reduction to NH3 under ambient conditions. In 0.1 M LiClO4, this hybrid attains a large NH3 yield rate and a high Faradaic efficiency of 27.3 μg·h−1·mg−1cat. and 14.6% at −0.4 V vs. reversible hydrogen electrode, respectively, rivalling the current efficiency of all Fe-based NRR electrocatalysts in aqueous media. It also shows strong durability during the electrolytic process.
Tsinghua University Press
Xiaojuan Zhu,Jinxiu Zhao,Lei Ji,Tongwei Wu,Ting Wang,Shuyan Gao,Abdulmohsen Ali Alshehri,Khalid Ahmed Alzahrani,Yonglan Luo,Yimo Xiang,Baozhan Zheng,Xuping Sun, FeOOH quantum dots decorated graphene sheet: An efficient electrocatalyst for ambient N2 reduction. NanoRes.2020, 13(1): 209–214