Biomass derived Fe-N/C catalyst for efficiently catalyzing oxygen reduction reaction in both alkaline and neutral pH conditions

作     者：Lin-Qian Yu Hao Wang Shu-La Chen Te-Er Wen Bao-Cheng Huang Ren-Cun Jin Lin-Qian Yu;Hao Wang;Shu-La Chen;Te-Er Wen;Bao-Cheng Huang;Ren-Cun Jin

作者机构：Laboratory of Water Pollution RemediationSchool of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2023年第34卷第1期

页      面：465-468页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(No.51908172)for the support of this study 

主　　题：Fe-N/C Oxygen reduction reaction Biomass Fe coordination Polyphenol 

摘      要：Fe-N/C is a promising oxygen reduction reaction(ORR)catalyst to substitute the current widely used precious metal ***-effectively fabricating the Fe-N/C material with high catalytic activity and getting in-depth insight into the responsible catalytic site are of great *** this work,we proposed to use biomass,tea leaves waste,as the precursor to prepare ORR *** adding 5%FeCl3(wt%)into tea precursor,the pyrolysis product(i.e.,5%Fe-N/C)exhibited an excellent four-electron ORR activity,whose onset potential was only 10 m V lower than that of commercial Pt/*** limiting current density of 5%Fe-N/C(5.75 m A/cm^(2))was even higher than Pt/C(5.44 m A/cm^(2)).Compared with other biomass or metal organic frameworks derived catalysts,5%Fe-N/C showed similar ORR ***,both the methanol tolerance and material stability performances of as-prepared 5%Fe-N/C catalyst were superior to that of Pt/C.X-ray adsorption fine structure characterization revealed that the FeN4O2might be the possible catalytic *** appropriate amount of iron chloride addition not only facilitated catalytic site formation,but also enhanced material conductivity and reaction *** results of this work may be useful for the Fe based transition metal ORR catalyst design and application.