Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction

doi:10.1016/j.apcatb.2019.117930

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction
	Bai, L ; Duan, ZY ; Wen, XD ; Si, R ; Guan, JQ
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019
卷号	257 页码:-
关键词	SINGLE-ATOM CATALYSTS HIGH-PERFORMANCE 2-ELECTRON REDUCTION MOLECULAR-OXYGEN COBALT CORROLES WATER OXIDATION ACTIVE-SITES CARBON ELECTROCATALYSTS GRAPHENE
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2019.117930
文献子类	期刊论文
英文摘要	Rational design and preparation of earth-abundant materials with high-efficiency oxygen reduction reaction (ORR) performance is pivotal for fuel cells. Here, an atomically dispersed Mn- and nitrogen-codoped graphene material (Mn@NG) is developed by a facile high-temperature annealing and subsequent acid-leaching strategy. The atomically dispersion of manganese in Mn@NG is confirmed by aberration-corrected electron microscopy with atomic resolution and the main structure of MnN4 moiety is resolved by X-ray absorption spectroscopy. The Mn@NG catalyst shows an onset potential and half-wave potential of 0.95 and 0.82 V vs RHE in 0.1 M KOH solution, respectively. Theoretical calculations manifest that MnN4 moiety embedded into graphene is the active center for efficient ORR, on which the theoretical overpotential is 0.63 V, lower than that on graphitic-N (1.18 V), pyridinic-N (1.58 V), MnN3-G (1.48 V), MnN3O-G (2.33 V), and Mn3O4 (001) surface (0.86 V).
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31970]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 2.Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130021, Jilin, Peoples R China; 3.Univ Texas Austin, Dept Chem, Austin, TX 78712 USA; 4.Univ Texas Austin, Inst Computat & Engn Sci, Austin, TX 78712 USA;
推荐引用方式 GB/T 7714	Bai, L,Duan, ZY,Wen, XD,et al. Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,257:-.
APA	Bai, L,Duan, ZY,Wen, XD,Si, R,&Guan, JQ.(2019).Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction.APPLIED CATALYSIS B-ENVIRONMENTAL,257,-.
MLA	Bai, L,et al."Atomically dispersed manganese-based catalysts for efficient catalysis of oxygen reduction reaction".APPLIED CATALYSIS B-ENVIRONMENTAL 257(2019):-.