Developing high-efficiency and robust durability electrocatalyst for hydrogen evolution reaction(HER)in water electrolysis functions as a crucial role for the construction of green hydrogen economy,herein,ultrafine W-...Developing high-efficiency and robust durability electrocatalyst for hydrogen evolution reaction(HER)in water electrolysis functions as a crucial role for the construction of green hydrogen economy,herein,ultrafine W-doped vanadium nitride nanoparticles anchored on N-doped graphitic carbon framework(WVN@NGC)are synthesized through a one-step simple pyrolysis protocol.Owing to the enlarged catalytically active sites,enhanced electrical conductivity and optimized electronic structure,the resultant VN/WN@NGC delivered the prominent HER performance with overpotentials of 143 mV and 158 mV at10 mA/cm^(2) in acid and alkaline media,respectively,accompanied by the long-term stability for at least50 h.This work highlights a novel strategy for a metal-triggered modulation of nitride-based HER electrocatalyst for sustainable energy conversion device.展开更多
基金supported by National Natural Science Foundation of China(Nos.22179074,52073166,52072226)Xi’an Key Laboratory of Green Manufacture of Ceramic Materials Foundation(No.2019220214SYS017CG039)+6 种基金Key Program for International S&T Cooperation Projects of Shaanxi Province(Nos.2020KW-038,2020GHJD-04)Science and Technology Program of Xi’an,China(No.2020KJRC0009)Scientific Research Program Funded by Shaanxi Provincial Education Department(No.20JY001)Science and Technology Resource Sharing Platform of Shaanxi Province(No.2020PT-022)Science and Technology Plan of Weiyang District,Xi’an(No.202009)Fund of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry(No.2021–14)Open Project of Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry,Ministry of Education(No.KFKT2020-06)。
文摘Developing high-efficiency and robust durability electrocatalyst for hydrogen evolution reaction(HER)in water electrolysis functions as a crucial role for the construction of green hydrogen economy,herein,ultrafine W-doped vanadium nitride nanoparticles anchored on N-doped graphitic carbon framework(WVN@NGC)are synthesized through a one-step simple pyrolysis protocol.Owing to the enlarged catalytically active sites,enhanced electrical conductivity and optimized electronic structure,the resultant VN/WN@NGC delivered the prominent HER performance with overpotentials of 143 mV and 158 mV at10 mA/cm^(2) in acid and alkaline media,respectively,accompanied by the long-term stability for at least50 h.This work highlights a novel strategy for a metal-triggered modulation of nitride-based HER electrocatalyst for sustainable energy conversion device.
