title: One-pot synthesis of γ-MnS/reduced graphene oxide with enhanced performance for aqueous asymmetric supercapacitors.
abstract: In this work, γ-MnS/reduced graphene oxide composites (γ-MnS/rGO) were prepared using a facile one-pot hydrothermal method. As an electrode material for supercapacitors, the γ-MnS/rGO-60 composite obtained under dosages of graphene oxide  was 60 mg and exhibited an enhanced specific capacitance of 547.6 F g-1at a current density of 1 A g-1, and outstanding rate capability (65% capacitance retention at 20 A g-1), with superior cycling stability and electrochemical reversibility. An asymmetric supercapacitor assembled from γ-MnS/rGO-60 composite and rGO (γ-MnS/rGO-60//rGO) showed a voltage window of 0-1.6 V and delivered a high energy density of 23.1 W h kg-1at a power density of 798.8 W kg-1, and 15.9 W h kg-1at 4.5 kW kg-1. Moreover, two such 1.0 × 1.0 cm2devices connected together in series easily light up a group of LED lights, showing its potential practical application as an attractive energy storage device.
authors.affiliation: College of Materials Science and Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China.
authors.forename: Guanggao
authors.initials: G
authors.lastname: Zhang
authors.forename: Menglai
authors.initials: M
authors.lastname: Kong
authors.forename: Yadong
authors.initials: Y
authors.lastname: Yao
authors.forename: Lu
authors.initials: L
authors.lastname: Long
authors.forename: Minglei
authors.initials: M
authors.lastname: Yan
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Liao
authors.forename: Guangfu
authors.initials: G
authors.lastname: Yin
authors.forename: Zhongbing
authors.initials: Z
authors.lastname: Huang
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun