Ni_(3)N Modified MOF Heterostructure with Tailored Electronic Structure for Efficient Overall Water Splitting  

作　　者：Hongnan Jia Na Yao Juan Zhu Yujia Liu Yunhao Lao Hengjiang Cong Wei Luo 

机构地区：[1]College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China [2]Suzhou Institute of Wuhan University,Suzhou,Jiangsu 215123,China

出　　处：《Chinese Journal of Structural Chemistry》2022年第8期31-36,共6页结构化学（英文）

基　　金：financially supported by the National Natural Science Foundation of China(21972107);Natural Science Foundation of Hubei Province(2020CFA095);Natural Science Foundation of Jiangsu Province(BK20191186)。

摘　　要：Exploring bifunctional electrocatalysts with high-efficiency and stability toward overall water splitting is desirable for sustainable energy technologies,yet challenging.Herein,we report the construction of Ni_(3)N on the surface of Ni-MOF-74 through an in-situ nitriding process.The obtained Ni-MOF-74/Ni_(3)N exhibits remarkable HER activity with an overpotential of 73 mV to deliver 10 mA cm^(-2).Theoretical calculations and experimental study demonstrate the electron transport between Ni_(3)N and Ni-MOF-74,leading to the improved H_(2)O adsorption,optimized hydrogen adsorption,and increased H_(ad)diffusion,which contributes to the enhanced HER performance.Besides,the obtained Ni-MOF-74/Ni_(3)N also possesses outstanding activity toward OER and overall water splitting.

关 键 词：hydrogen evolution reaction Ni_(3)N MOF DFT calculation water splitting 

分 类 号：TQ116.2[化学工程—无机化工] TQ426