气候变化领域集成服务门户(CCPortal): Stabilizing atomic Pt with trapped interstitial F in alloyed PtCo nanosheets for high-performance zinc-air batteries

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DOI	10.1039/c9ee02657f
	Stabilizing atomic Pt with trapped interstitial F in alloyed PtCo nanosheets for high-performance zinc-air batteries
	Li Z.; Niu W.; Yang Z.; Zaman N.; Samarakoon W.; Wang M.; Kara A.; Lucero M.; Vyas M.V.; Cao H.; Zhou H.; Sterbinsky G.E.; Feng Z.; Du Y.; Yang Y.
发表日期	2020
ISSN	17545692
起始页码	884
结束页码	895
卷号	13 期号:3
英文摘要	Recently, considerable attention has been paid to the stabilization of atomic platinum (Pt) catalysts on desirable supports in order to reduce Pt consumption, improve the catalyst stability, and thereafter enhance the catalyst performance in renewable energy devices such as fuel cells and zinc-air batteries (ZABs). Herein, we rationally designed a novel strategy to stabilize atomic Pt catalysts in alloyed platinum cobalt (PtCo) nanosheets with trapped interstitial fluorine (SA-PtCoF) for ZABs. The trapped interstitial F atoms in the PtCoF matrix induce lattice distortion resulting in weakening of the Pt-Co bond, which is the driving force to form atomic Pt. As a result, the onset potentials of SA-PtCoF are 0.95 V and 1.50 V for the oxygen reduction and evolution reactions (ORR and OER), respectively, superior to commercial Pt/C@RuO2. When used in ZABs, the designed SA-PtCoF can afford a peak power density of 125 mW cm-2 with a specific capacity of 808 mA h gZn-1 and excellent cyclability over 240 h, surpassing the state-of-the-art catalysts. © 2020 The Royal Society of Chemistry.
英文关键词	Atoms; Binary alloys; Catalysts; Electrolytic reduction; Fuel cells; Nanosheets; Platinum alloys; Ruthenium compounds; Stabilization; Zinc; Catalyst performance; Catalyst stability; Lattice distortions; Oxygen reduction and evolution reactions; Peak power densities; Renewable energy devices; Specific capacities; State of the art; Zinc air batteries; alternative energy; catalyst; fuel cell; nanoparticle; performance assessment; platinum
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189693
作者单位	Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32826, United States; NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, United States; Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, United States; Department of Physics, University of Central Florida, Orlando, FL 32826, United States; School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR 97331, United States; Materials Science Division, Argonne National Laboratory, Lemont, IL 60439, United States; X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, United States; Energy Conversion and Propulsion Cluster, University of Central Florida, Orlando, FL 32826, United States
推荐引用方式 GB/T 7714	Li Z.,Niu W.,Yang Z.,et al. Stabilizing atomic Pt with trapped interstitial F in alloyed PtCo nanosheets for high-performance zinc-air batteries[J],2020,13(3).
APA	Li Z..,Niu W..,Yang Z..,Zaman N..,Samarakoon W..,...&Yang Y..(2020).Stabilizing atomic Pt with trapped interstitial F in alloyed PtCo nanosheets for high-performance zinc-air batteries.Energy & Environmental Science,13(3).
MLA	Li Z.,et al."Stabilizing atomic Pt with trapped interstitial F in alloyed PtCo nanosheets for high-performance zinc-air batteries".Energy & Environmental Science 13.3(2020).