High‐Performance Electrochemical NO Reduction into NH3 by MoS2 Nanosheet

• DOI: 10.1002/ange.202110879
• Publication Date: 2021-09-14T08:57:38Z
• Authors: Longcheng Zhang; Jie Liang; Yuanyuan Wang; Ting Mou; Yiting Lin; Luchao Yue; Tingshuai Li; Qian Liu; Yonglan Luo; Na Li; Bo Tang; Yang Liu; Shuyan Gao; Abdulmohsen Ali A...; Xiaodong Guo; Dongwei Ma; Xuping Sun
• Keywords: Nanosheet

Abstract Electrochemical reduction of NO not only offers an attractive alternative to the Haber–Bosch process for ambient NH 3 production but mitigates human‐caused unbalance nitrogen cycle. Herein, we report that MoS 2 nanosheet on graphite felt (MoS /GF) acts as efficient and robust 3D electrocatalyst NO‐to‐NH conversion. In acidic electrolyte, such /GF attains a maximal Faradaic efficiency 76.6 % large yield up 99.6 μmol cm −2 h −1 . Using nanosheet‐loaded carbon paper cathode, proof‐of‐concept device Zn‐NO battery was assembled deliver discharge power density 1.04 mW 411.8 μg mg cat. Calculations reveal positively charged Mo‐edge sites facilitate adsorption/activation via acceptance–donation mechanism disfavor binding protons coupling N−N bond.