N‐doped porous carbon nanofibers inlaid with hollow Co_(3)O_(4) nanoparticles as an efficient bifunctional catalyst for rechargeable Li‐O_(2) batteries
作者机构:School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640GuangdongChina Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of EducationSchool of Chemical EngineeringZhengzhou UniversityZhengzhou 450001HenanChina
基 金:国家自然科学基金(21776099) 广东省自然科学基金(2019A1515011579)
出 版 物:《Chinese Journal of Catalysis》 (催化学报(英文))
年 卷 期:2022年第43卷第6期
页 码:1511-1519页
摘 要:Stable and high‐efficiency bifunctional catalysts for the oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)are desired for the practical application of Li‐O_(2)batteries with excellent rate performance and cycle ***,a novel hybrid bifunctional catalyst with carbon nanofibers inlaid with hollow Co_(3)O_(4)nanoparticles and separate active sites for ORR and OER were prepared and applied in Li‐O_(2)*** from the synergistic effect of unique porous structural features and high electrocatalytic activity of hollow Co3O4 intimately bound to N‐doped carbon nanofibers,the assembled Li‐O_(2)batteries with novel catalyst exhibited high specific capacity,excellent rate capability,and cycle stability up to 150 cycles under a capacity limitation of 500 mAh g^(–1)at a current density of 100 mA g^(–1).The facile synthesis and preliminary results in this work show the as‐prepared catalyst as a promising bifunctional electrocatalyst for applications in metal‐air batteries,fuel cells,and electrocatalysis.
主 题 词:Li‐O_(2)batteries Bifunctional catalyst Co_(3)O_(4) N‐doped carbon nanofibers Oxygen reduction reaction Oxygen evolution reaction
学科分类:0808[工学-自动化类] 07[理学] 070205[070205] 08[工学] 080501[080501] 0805[工学-能源动力学] 080502[080502] 0702[理学-物理学类]
核心收录:
D O I:10.1016/S1872-2067(21)64017-2
馆 藏 号:203111024...