Uniformly dispersed FeOx atomic clusters by pulsed arc plasma deposition： An efficient electrocatalyst for improving the performance of Li-O2 battery

作     者：Xiangyi Luo Jun Lu Evan Sohm Lu Ma Tianpin Wu Jianguo Wen Dantong Qiu YunKai Xu Yang Ren Dean J. Miller Khalil Amine 

作者机构：Material Sciences Division Argonne National Laboratory Argonne IL 60439 USA Chemical Sciences and Engineering Division Argonne National Laboratory Argonne IL 60439 USA ULVAC Technologies Inc. Methuen MA 01844 USA Center for N anoscale Materials Nanoscience and Technology Argonne National Laboratory Argonne IL 60439 USA Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA Center for Nanoscale Materials Nanoscience and Technology Argonne Notional Laboratory Argonne IL 60439 USA 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2016年第9卷第7期

页      面：1913-1920页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the US Department of Energy under contract from the Vehicle Technologies Office Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) Use of the Advanced Photon Source and the Electron Microscopy Center-Center for Nanoscale Materials supported by the US Department of Energy, Office of Basic Energy Sciences, under contract 

主　　题：Li O2 battery,FeOx atomic cluster,electrocatalyst,pulsed arc plasmadeposition （APD） 

摘      要：The present study explored a new method to improve the catalytic activity of non-precious metals, especially in electrochemical reactions. Highly ionized Fe plasma produced by arc discharge was uniformly deposited on a porous carbon substrate and formed atomic clusters on the carbon surface. The as-prepared FeO~/C material was tested as a cathode material in a rechargeable Li-02 battery under different current rates. The results showed significant improvement in battery performance in terms of both cycle life and reaction rate. Furthermore, X-ray diffraction （XRD） and scanning electron microscopy （SEM） results showed that the as-prepared cathode material stabilized the cathode and reduced side reactions and that the current rate was a critical factor in the nucleation of the discharge products.