High-performance supercapacitor based on three-dimensional MoS2/graphene aerogel composites. (16th December 2015)

• Record Type: Journal Article
• Authors: Yang, MinHo; Jeong, Jae-Min; Huh, Yun Suk; Choi, Bong Gill
• Is Part Of: Composites science and technology. Volume 121(2015)
• Page Start: 123
• Page End: 128
• Publication Date: 2015-12-16
• Subjects: Hybrid composites -- Layered structures -- Nano composites -- Structural composites; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2015.11.004
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Three-dimensional (3D) MoS2 /chemically modified graphene (CMG) aerogel composites are prepared by a hydrothermal reduction reaction. Such 3D architecture enables effective electron and ion transfer and stable distribution of 2D nanosheets. 3D MoS2 /CMG composites are investigated as supercapacitor electrode materials, showing a high specific capacitance of 268 F g −1 at 0.5 A g −1, a high rate capability with 87.7% retention up to 15 A g −1, and a good cycle life with 93% retention for 1000 cycles. Electrochemical impedance spectroscopy analysis reveals that the 3D interconnected structure of MoS2 /CMG enhances the charge transfer and facilitates diffusion of electrolyte ions.