title: Three-Dimensional MoS2@CNT/RGO Network Composites for High-Performance Flexible Supercapacitors.
abstract: Two-dimensional atomically thick materials, reduced graphene oxide (RGO), and layered molybdenum disulfide (MoS2) have been investigated as potential novel energy storage materials because of their distinct physicochemical properties. These materials suffer, however, from rapid capacity decay and low rate capability. This study describes a facile, binder-free approach to fabricate large-scale, 3D network structured MoS2@carbon nanotube (CNT)/RGO composites for application in flexible supercapacitor devices. The as-obtained composites possess a hierarchical porosity, and an interconnected framework. The electrochemical supercapacitive measurements of the MoS2@CNT/RGO electrode show a high specific capacitance of 129 mF cm-2at 0.1 mA cm-2. The symmetric supercapacitor devices based on the as-obtained composites exhibit a long lifetime (94.7 % capacitance retention after 10 000 cycles), and a high electrochemical performance (29.7 mF cm-2). The present experimental findings will lead to scalable, binder-free synthesis of MoS2@CNT/RGO hybrid electrodes, with enhanced, flexible, supercapacitive performance, in portable and wearable energy storage devices.
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Shouzhi
authors.initials: S
authors.lastname: Wang
authors.affiliation: School of Materials Science of Engineering, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Jiayan
authors.initials: J
authors.lastname: Zhu
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Yongliang
authors.initials: Y
authors.lastname: Shao
authors.affiliation: School of Materials Science of Engineering, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Weiran
authors.initials: W
authors.lastname: Li
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Yongzhong
authors.initials: Y
authors.lastname: Wu
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Hao
keywords: energy storage; flexible supercapacitor; molybdenum disulfide; reduced graphene oxide; three-dimensional network