Electrochemical NO reduction reaction(NORR)to NH3 emerges as a fascinating approach to achieve both the migration of NO pollutant and the green synthesis of NH3.In this contribution,within the framework of computation...Electrochemical NO reduction reaction(NORR)to NH3 emerges as a fascinating approach to achieve both the migration of NO pollutant and the green synthesis of NH3.In this contribution,within the framework of computational hydrogen model and constant-potential implicit solvent model,the NORR electrocatalyzed by a novel transition-metal-anchored SnOSe armchair nanotube(TM@SnOSe_ANT)was investigated using density functional theory calculations.Through the checking in terms of stability,activity,and selectivity,Sc-and Y@SnOSe_ANTs were screened out from the twenty-five candidates.Considering the effects of pH,solvent environment,as well as applied potential,only Sc@SnOSe_ANT is found to be most promising.The predicted surface area normalized capacitance is 11.4μF/cm^(2),and the highest NORR performance can be achieved at the U_(RHE) of-0.58 V in the acid environment.The high activity originates from the mediate adsorption strength of OH.These findings add a new perspective that the nanotube can be served as a highly promising electrocatalyst towards NORR.展开更多
基金This study was supported by the National Natural Science Foundation of China(No.21573002)Natural Science Funds for Distinguished Young Scholar of Anhui Province(No.1908085J08)the University Annual Scientific Research Plan of Anhui Province(Nos.2022AH050209 and 2022AH010013).
文摘Electrochemical NO reduction reaction(NORR)to NH3 emerges as a fascinating approach to achieve both the migration of NO pollutant and the green synthesis of NH3.In this contribution,within the framework of computational hydrogen model and constant-potential implicit solvent model,the NORR electrocatalyzed by a novel transition-metal-anchored SnOSe armchair nanotube(TM@SnOSe_ANT)was investigated using density functional theory calculations.Through the checking in terms of stability,activity,and selectivity,Sc-and Y@SnOSe_ANTs were screened out from the twenty-five candidates.Considering the effects of pH,solvent environment,as well as applied potential,only Sc@SnOSe_ANT is found to be most promising.The predicted surface area normalized capacitance is 11.4μF/cm^(2),and the highest NORR performance can be achieved at the U_(RHE) of-0.58 V in the acid environment.The high activity originates from the mediate adsorption strength of OH.These findings add a new perspective that the nanotube can be served as a highly promising electrocatalyst towards NORR.
