Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions

doi:10.1039/c9ee02974e

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

	Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions
	Jiang, ZL ; Sun, WM ; Shang, HS ; Chen, WX ; Sun, TT ; Li, HJ ; Dong, JC ; Zhou, J ; Li, Z ; Wang, Y
刊名	ENERGY & ENVIRONMENTAL SCIENCE
	2019
卷号	12 期号:12 页码:3508-3514
关键词	INNER-SHELL EXCITATION FE-N-C POROUS CARBON ELECTROCATALYSTS EVOLUTION FRAMEWORKS GRAPHENE SITES GAS
ISSN号	1754-5692
DOI	10.1039/c9ee02974e
文献子类	期刊论文
英文摘要	The regulation of catalytic activity in the oxygen reduction reaction (ORR) is significant to the development of metal-air batteries and other oxygen involving energy conversion devices. Herein, we propose an atomic interface strategy to construct a single atom copper catalyst (denoted as Cu-SA/SNC) which exhibits enhanced ORR activity with a half-wave potential of 0.893 V vs. RHE in alkaline media. Moreover, synchrotron-radiation-based X-ray absorption fine structure (XAFS) investigations together with density functional theory (DFT) calculations reveal that the isolated bond-shrinking low-valence Cu (+1)-N-4-C8S2 atomic interface moiety serves as an active site during the ORR process, and the synergistic mechanism between the Cu species and the carbon matrix at the atomic interface plays a critical role in boosting the ORR efficiency, by adjusting the reaction free energy of intermediate adsorption. This atomic interface concept may provide an alternative methodology for the rational design of advanced oxygen electrode materials and new probability to improve their catalytic performance.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31968]
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 Synchrotron Radiat Facil, Shanghai 201800, Peoples R China; 2.SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA; 3.Univ Sci & Technol China, Collaborat Innovat Ctr Chemistiy Energy Mat, Dept Chem, Hefei 230026, Anhui, Peoples R China 4.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Construct Tailorable Adv Funct Ma, Beijing 100081, Peoples R China; 5.China Agr Univ, Coll Sci, Beijing 100193, Peoples R China; 6.Univ Sci & Technol Beijing, Dept Chem, Beijing Key Lab Sci & Applicat Funct Mol & Crysta, Beijing 100083, Peoples R China; 7.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China; 8.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;
推荐引用方式 GB/T 7714	Jiang, ZL,Sun, WM,Shang, HS,et al. Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions[J]. ENERGY & ENVIRONMENTAL SCIENCE,2019,12(12):3508-3514.
APA	Jiang, ZL.,Sun, WM.,Shang, HS.,Chen, WX.,Sun, TT.,...&Li, YD.(2019).Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions.ENERGY & ENVIRONMENTAL SCIENCE,12(12),3508-3514.
MLA	Jiang, ZL,et al."Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions".ENERGY & ENVIRONMENTAL SCIENCE 12.12(2019):3508-3514.