title: MnO2/g-C3N4nanocomposite with highly enhanced supercapacitor performance.
abstract: A novel sandwich-like MnO2/g-C3N4nanocomposite (NC) based on the integration of high-density MnO2nanorods (NRs) onto the surfaces of two-dimensional (2D) g-C3N4sheets has been successfully fabricated through a facile soft chemical route at low temperature. The MnO2/g-C3N4NC electrode enhanced the supercapacitor (SC) performance, benchmarked against both the bare MnO2NRs electrode and the MnO2/graphene oxide (GO) NC electrode, exhibiting high specific capacitance of 211 F/g at a current density of 1 A/g, with good rate capacity and cycling stability. The sandwich-like hybrid structure, the unique 2D structure of the g-C3N4sheets and the presence of nitrogen in the g-C3N4all contributed to the promising SC performance of the MnO2/g-C3N4NC. This work demonstrated the advantages of the g-C3N4sheets over the commonly-used GO sheets in the design of novel hybrid composite for enhanced capacitance performance of MnO2-based electrochemical SCs, and the results could be extended to other electrode materials for SCs.
authors.affiliation: Institute of Marine Materials Science and Engineering, College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China.
authors.forename: Xueting
authors.initials: X
authors.lastname: Chang
authors.forename: Xinxin
authors.initials: X
authors.lastname: Zhai
authors.forename: Shibin
authors.initials: S
authors.lastname: Sun
authors.forename: Danxia
authors.initials: D
authors.lastname: Gu
authors.forename: Lihua
authors.initials: L
authors.lastname: Dong
authors.forename: Yansheng
authors.initials: Y
authors.lastname: Yin
authors.forename: Yanqiu
authors.initials: Y
authors.lastname: Zhu