title: MnO2 Nano-Urchin/Graphene Hybrid Electrodes: Facile Synthesis and Enhanced Supercapacitance Performance.
abstract: MnO2 with urchin-like nano/micro hierarchical architecture was synthesized through an easy hydrothermal method at low temperature and used to prepare MnO2/graphene hybrid composite as electrode materials through an easy and efficient solution-based method. The MnO2 particles in the composite with 66.7% mass ratio could achieve specific capacitance as high as 451.5 F g(-1) at a scan rate of 10 mV s(-1) and exhibit good cycle stability with 93.8% capacitance retention over 2000 cycles. These properties result from the unique urchin-like nano/micro hierarchical structure of MnO2 as well as the function of graphene in enhancing the conductivity and utilization of MnO2.
authors.forename: Yao
authors.initials: Y
authors.lastname: Wang
authors.forename: Qiu-Mei
authors.initials: QM
authors.lastname: Zhou
authors.forename: Zhen
authors.initials: Z
authors.lastname: Huang
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Tang
authors.forename: Ji-Qing
authors.initials: JQ
authors.lastname: Jiao
authors.forename: Yan-Xin
authors.initials: YX
authors.lastname: Wang
authors.forename: Ji-Xian
authors.initials: JX
authors.lastname: Liu
authors.forename: Lin-Jun
authors.initials: LJ
authors.lastname: Huang
authors.forename: Laurence A
authors.initials: LA
authors.lastname: Belfiore