An Efficient Bio-inspired Oxygen Reduction Reaction Catalyst:MnO_(x)Nanosheets Incorporated Iron Phthalocyanine Functionalized Graphene

作     者：Xing Wu Yi Cheng Jean-Pierre Veder San Ping Jiang Xing Wu;Yi Cheng;Jean-Pierre Veder;San Ping Jiang

作者机构：Department of Environmental EngineeringSchool of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China National Engineering Technology Research Center for Control and Treatment of Heavy-metal PollutionChangsha 410083China John de Laeter CentreCurtin UniversityPerth WA 6102Australia Fuels and Energy Technology InstituteCurtin UniversityPerth WA 6102Australia 

出 版 物：《能源与环境材料（英文）》 (Energy&Environmental Materials)

年 卷 期：2021年第4卷第3期

页      面：474-480页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 070205[理学-凝聚态物理] 0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0706[理学-大气科学] 0702[理学-物理学] 

基　　金：funded by an Australian Research Council LIEF grant(LE120100026) supported by the National Natural Science Foundation of China(U19A2017) 

主　　题：bio-inspired heme-copper oxidases iron phthalocyanine MnO_(x)nanosheets oxygen reduction reaction 

摘      要：Oxygen reduction reaction(ORR)catalysts play a critical role in energy storage and conversion devices and have been attracted enormous interests,and however,it remains challenging to develop highly active cheap catalysts in a simple and green *** by the heme-copper oxidases(HOCs),in which the ORR active center is originated from the incorporation of Fe-N_(4)with copper atom,we here developed a fine manganese oxide nanosheets(MnO_(x)NSs)integrated with iron phthalocyanine(FePc)anchored on highly conductive graphene(MnO_(x)/FePc-G)through a green route only involve ethanol as the *** bio-inspired catalyst MnO_(x)/Fe Pc-G demonstrated high ORR activity with a half-wave potential(E_(1/2))of 0.887 V,about 57 mV more positive than that of Pt/*** the current density(j)at 0.9 V is about 1.9 m A cm^(-2),which is three times of Pt/C and *** importantly,the bio-inspired systems show superior stability in comparison to commercial Pt/C,showing a potential of 0.863 V to deliver a j of 3 mA cm^(-2)after 18000 s polarization,about 80 mV higher than that of 0.783 V for Pt/*** high activity is contributed by the integration of the Fe Pc and MnO_(x)NSs that plays the role to assist the cleavage of the O_(2)*** approach provides a new evidence to develop highly efficient ORR catalysts through imitate the naturally involved systems through a simple route.