MoC nanocrystals confined in N-doped carbon nanosheets toward highly selective electrocatalytic nitric oxide reduction to ammonia
作者机构：Key Laboratory of Carbon Materials of Zhejiang ProvinceCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China Institute for New Energy Materials and Low-Carbon TechnologiesTianjin Key Lab for Photoelectric Materials&DevicesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materialsand Guangxi Key Laboratory of Processing for NonFerrous Metals and Featured MaterialsSchool of ResourceEnvironments and MaterialsGuangxi UniversityNanning 530004China Institute for Advanced StudyChengdu UniversityChengdu 610106China College of ChemistryZhengzhou UniversityZhengzhou 450000China Institute of Zhejiang University–QuzhouQuzhou 324000China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第10期
页 面：8890-8896页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：supported by National Natural Science Foundation of China(Nos.22075211 22109118 21601136 51971157 and 51621003)
主 题：ammonia electrosynthesis green route molybdenum carbides(MoC)nanocrystals nitric oxide reduction reaction high selectivity
摘 要：Electrochemical nitric oxide reduction reaction(NORR)to produce ammonia(NH3)under ambient conditions is a promising alternative to the energy and carbon-intensive Haber–Bosch approach,but its performance is still ***,molybdenum carbides(MoC)nanocrystals confined by nitrogen-doped carbon nanosheets are first designed as an efficient and durable electrocatalyst for catalyzing the reduction of NO to NH3 with maximal Faradaic efficiency of 89%±2%and a yield rate of 1,350±15μg·h^(−1)·cm^(−2) at the applied potential of−0.8 V *** hydrogen electrode(RHE)as well as high stable activity with negligible current density and NH3 yield rate decays over a 30 h continue the ***,as a proof-of-concept of Zn–NO battery,it achieves a peak power density of 1.8 mW·cm^(−2) and a large NH3 yield rate of 782±10μg·h^(−1)·cm^(−2),which are comparable to the best-reported *** calculations reveal that the MoC(111)has a strong electronic interaction with NO molecules and thus lowering the energy barrier of the potential-determining step and suppressing hydrogen evolution *** work suggests that Mo-based materials are a powerful platform providing great opportunities to explore highly selective and active catalysts for NH3 production.
维普期刊数据库