Facile construction of MoS2/graphene aerogel composite by depositing MoS2 film with a magnetron sputtering method for high-performance supercapacitors. (1st August 2022)

• Record Type: Journal Article
• Authors: Zhao, Yan; Xing, Guangjian; Liu, Hexuan; Zhang, Wenting; Liu, Qingjun; Zhao, Chang; Li, Yan; Wang, Yanyan
• Is Part Of: Solid state communications. Volume 351(2022)
• Publication Date: 2022-08-01
• Subjects: Molybdenum disulfide -- Graphene aerogel -- Magnetron sputtering -- Electrochemical property; Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2022.114789
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: Molybdenum disulfide (MoS2 ) film has been successfully deposited within a three-dimensional (3D) graphene aerogel (GA) by a magnetron sputtering method to facilely construct MoS2 /GA composite as a high-performance electrode material of supercapacitor. Through cyclic voltammetry, constant current charge/discharge and electrochemical impedance spectroscopy tests of three-electrode supercapacitor, the electrochemical performance of the MoS2 /GA composite was evaluated, demonstrating specific capacitances of 187.3 and 175.0 F g −1 at 0.5 and 1 A g −1, respectively. When cycles 1000 times under the condition of 2 A g −1, the capacitance retention remains 93.5%. The excellent electrochemical properties of MoS2 /GA were attributed to the effective structural integration of MoS2 film and graphene sheets achieved with the magnetron sputtering process, which can further develop other GA-based composites as a feasible technique. The as-prepared MoS2 /GA with outstanding performance in this work has a promising prospect in supercapacitor application. Highlights: MoS2 /GA was prepared by depositing MoS2 film on graphene sheet with a sputtering technique. MoS2 /GA demonstrated high specific capacitance of 175.0 F g −1 at current density of 1 A g −1 . MoS2 /GA exhibited good cycling stability with 93.5% capacitance retention after 1000 cycles.