CoS2 nanoparticles–graphene hybrid as a cathode catalyst for aprotic Li–O2 batteries. Issue 38 (29th March 2016)

• Record Type: Journal Article
• Authors: Lyu, Zhiyang; Zhang, Jian; Wang, Liangjun; Yuan, Kaidi; Luan, Yanping; Xiao, Peng; Chen, Wei
• Is Part Of: RSC advances. Volume 6:Issue 38(2016)
• Page Start: 31739
• Page End: 31743
• Publication Date: 2016-03-29
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra00723f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A CoS2 nanoparticles–graphene hybrid was first used as a cathode catalyst for aprotic Li–O2 batteries, exhibiting low discharge/charge overpotentials and a high rate capability. Abstract : Cobalt sulfides have been demonstrated to possess high oxygen reduction activity in fuel cells with aqueous solutions. Herein, we report the use of a CoS2 nanoparticles–graphene (CoS2 /RGO) hybrid as a cathode catalyst for aprotic lithium–oxygen (Li–O2 ) batteries, where the CoS2 /RGO was prepared by a facile hydrothermal method. The resulting cells exhibited low discharge/charge overpotentials and a high rate capability, which make the metal sulfide catalysts promising cathode materials for Li–O2 batteries.