气候变化领域集成服务门户(CCPortal): Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions

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DOI	10.1039/c9ee02974e
	Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions
	Jiang Z.; Sun W.; Shang H.; Chen W.; Sun T.; Li H.; Dong J.; Zhou J.; Li Z.; Wang Y.; Cao R.; Sarangi R.; Yang Z.; Wang D.; Zhang J.; Li Y.
发表日期	2019
ISSN	1754-5692
起始页码	3508
结束页码	3514
卷号	12 期号:12
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)-N4-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. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Catalyst activity; Copper; Density functional theory; Design for testability; Electrodes; Electrolytic reduction; Energy conversion; Free energy; Metal-air batteries; Oxygen; Reaction intermediates; Synchrotron radiation; X ray absorption; Catalytic performance; Energy conversion devices; Half-wave potential; Interface strategies; Oxygen reduction reaction; Reaction free energy; Synergistic mechanism; X ray absorption fine structures; Atoms; catalyst; copper; electrode; methodology; oxygen; performance assessment; reduction
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162534
作者单位	Beijing Key Lab. of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; College of Science, China Agricultural University, Beijing, 100193, China; Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, 201800, China; Department of Chemistry, Tsinghua University, Beijing, 100084, China; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States; Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Univer...
推荐引用方式 GB/T 7714	Jiang Z.,Sun W.,Shang H.,et al. Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions[J],2019,12(12).
APA	Jiang Z..,Sun W..,Shang H..,Chen W..,Sun T..,...&Li Y..(2019).Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions.Energy and Environmental Science,12(12).
MLA	Jiang Z.,et al."Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions".Energy and Environmental Science 12.12(2019).