气候变化领域集成服务门户(CCPortal): Engineering the electronic and strained interface for high activity of PdMcore@Ptmonolayer electrocatalysts for oxygen reduction reaction

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DOI	10.1016/j.scib.2020.04.015
	Engineering the electronic and strained interface for high activity of PdMcore@Ptmonolayer electrocatalysts for oxygen reduction reaction
	Nan H.; Su Y.-Q.; Tang C.; Cao R.; Li D.; Yu J.; Liu Q.; Deng Y.; Tian X.
发表日期	2020
ISSN	20959273
起始页码	1396
结束页码	1404
卷号	65 期号:16
英文摘要	Alloyed nanoparticles with core-shell structures provide a favorable model to modulate interfacial interaction and surface structures at the atomic level, which is important for designing electrocatalysts with high activity and durability. Herein, core-shell structured Pd3M@Pt/C nanoparticles with binary PdM alloy cores (M = Fe, Ni, and Co) and a monolayer Pt shell were successfully synthesized with diverse interfaces. Among these, Pd3Fe@Pt/C exhibited the best oxygen reduction reaction catalytic performance, roughly 5.4 times more than that of the commercial Pt/C catalyst used as reference. The significantly enhanced activity is attributed to the combined effects of strain engineering, interfacial electron transfer, and improved Pt utilization. Density functional theory simulations and extended X-ray absorption fine structure analysis revealed that engineering the alloy core with moderate lattice mismatch and alloy composition (Pd3Fe) optimizes the surface oxygen adsorption energy, thereby rendering excellent electrocatalytic activity. Future researches may use this study as a guide on the construction of highly effective core-shell electrocatalysts for various energy conversions and other applications. © 2020 Science China Press
关键词	Diverse interfaces Fuel cells Interface engineering Oxygen reduction reaction Pt monolayer
英文关键词	Binary alloys; Density functional theory; Electrocatalysts; Electrolysis; Electrolytic reduction; Extended X ray absorption fine structure spectroscopy; Gas adsorption; Iron alloys; Lattice mismatch; Lattice theory; Nanoparticles; Oxygen; Palladium alloys; Platinum; Shells (structures); Synthesis (chemical); X ray absorption; Catalytic performance; Core shell structure; Density functional theory simulations; Electrocatalytic activity; Extended x-ray absorption fine structure analysis; Interfacial electron transfer; Interfacial interaction; Strained interfaces; Oxygen reduction reaction
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207151
作者单位	School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China; Laboratory of Inorganic Materials & Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, MB Eindhoven, 5600, Netherlands; School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States; Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; The Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China; Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, China; State Key Laboratory of Mari...
推荐引用方式 GB/T 7714	Nan H.,Su Y.-Q.,Tang C.,et al. Engineering the electronic and strained interface for high activity of PdMcore@Ptmonolayer electrocatalysts for oxygen reduction reaction[J],2020,65(16).
APA	Nan H..,Su Y.-Q..,Tang C..,Cao R..,Li D..,...&Tian X..(2020).Engineering the electronic and strained interface for high activity of PdMcore@Ptmonolayer electrocatalysts for oxygen reduction reaction.Science Bulletin,65(16).
MLA	Nan H.,et al."Engineering the electronic and strained interface for high activity of PdMcore@Ptmonolayer electrocatalysts for oxygen reduction reaction".Science Bulletin 65.16(2020).