Article Title

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

Authors

Xiangyi Luo, Material Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
Jun Lu, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA
Evan Sohm, ULVAC Technologies, Inc., Methuen, MA 01844, USA
Lu Ma, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
Tianpin Wu, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
Jianguo Wen, Center for Nanoscale Materials, Nanoscience and Technology, Argonne National Laboratory, Argonne, IL 60439, USA
Dantong Qiu, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA
YunKai Xu, Material Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
Yang Ren, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
Dean J. Miller, Center for Nanoscale Materials, Nanoscience and Technology, Argonne National Laboratory, Argonne, IL 60439, USA
Khalil Amine, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA

Keywords

Li–O2 battery, FeOx atomic cluster, electrocatalyst, pulsed arc plasmadeposition (APD)

Abstract

The present study explored a new method to improve the catalytic activity ofnon-precious metals, especially in electrochemical reactions. Highly ionized Feplasma produced by arc discharge was uniformly deposited on a porous carbonsubstrate and formed atomic clusters on the carbon surface. The as-preparedFeOx/C material was tested as a cathode material in a rechargeable Li–O2 batteryunder different current rates. The results showed significant improvement inbattery performance in terms of both cycle life and reaction rate. Furthermore,X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showedthat the as-prepared cathode material stabilized the cathode and reduced sidereactions and that the current rate was a critical factor in the nucleation of thedischarge products.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-016-1083-0

Publisher

Tsinghua University Press

Recommended Citation

Xiangyi Luo,Jun Lu,Evan Sohm,Lu Ma,Tianpin Wu,Jianguo Wen,Dantong Qiu,YunKai Xu,Yang Ren,Dean J. Miller,Khalil Amine, Uniformly dispersed FeO x atomic clusters by pulsed arc plasma deposition: An efficient electrocatalyst for improving the performance of Li–O2 battery. NanoRes.2016, 9(7): 1913–1920