B and Fe co-doped Co_(2)P hollow nanocubes for nitrate electroreduction to ammonia  

作　　者：Jing Miao Qingling Hong Liping Liang Guomin Li Zhihong Liu Shibin Yin Yu Chen 

机构地区：[1]School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China [2]School of Materials Science and Engineering,Shaanxi Normal University,Xi'an 710062,China [3]School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi'an 710062,China [4]Guangxi Key Laboratory of Electrochemical Energy Materials,School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China

出　　处：《Chinese Chemical Letters》2024年第2期278-282,共5页中国化学快报（英文版）

基　　金：supported by Natural Science Foundation of Shanxi Province(No.202203021222213);Taiyuan University of Science and Technology Scientific Research Initial Funding(No.20222091);National Natural Science Foundation of China(No.22073061);Science and Technology Innovation Team of Shaanxi Province(No.2023-CX-TD-27);Fundamental Research Funds for the Central Universities(No.GK202202001).

摘　　要：Nitrate(NO_(3)^(−))electroreduction reaction(NO_(3)^(−)RR)provides an attractive and sustainable route for NO_(3)^(−)pollution mitigation or energy-saved ammonia(NH3)synthesis.In this work,high-quality B and Fe co-doped Co_(2) P hollow nanocubes(B/Fe-Co_(2) P HNCs)are successfully synthesized though simultaneous boronation-phosphorization treatment,which reveal outstanding selectivity,activity,stability for the NO_(3)^(−)to NH_(3) conversion in neutral electrolyte because of big surface area,fast mass transport,superhydrophilic surface,and optimized electronic structure.B/Fe-Co_(2) P HNCs can achieve the high NH3 yield rate(22.67 mg h^(−1) mg_(cat)^(−1))as well as Faradaic efficiency(97.54%)for NO_(3)^(−)RR,greatly outperforming most of non-precious metal based NO_(3)^(−)RR electrocatalysts.

关 键 词：Nitrate electroreduction reaction Ammonia synthesis Transition metal phosphides Hollow nanocubes 

分 类 号：TQ113.2[化学工程—无机化工] TQ426[一般工业技术—材料科学与工程] TB383.1