title: Hybridized Phosphate with Ultrathin Nanoslices and Single Crystal Microplatelets for High Performance Supercapacitors.
abstract: A novel hybridized phosphate is developed through a mild hydrothermal method to construct high performance asymmetric supercapacitor. Single layered (Ni,Co)3(PO4)2·8H2O nanoslices (∼1 nm) and single crystal (NH4)(Ni,Co)PO4·0.67H2O microplatelets are obtained through a template sacrificial method and dissolution recrystallization approach respectively in one step. This unique hybridized structure delivers a maximum specific capacitance of 1128 F g(-1) at current density of 0.5 A g(-1). The asymmetric supercapacitor (ASC) based on the hybrid exhibits a high energy density of 35.3 Wh kg(-1) at low power density, and still holds 30.9 Wh kg(-1) at 4400 W kg(-1). Significantly, the ASC manifests very high cycling stability with 95.6% capacitance retention after 5000 cycles. Such excellent electrochemical performance could be attributed to the synergistic effect of the surface redox reaction from the ultrathin nanoslices and ion intercalation from the single crystal bulk structure. This material represents a novel kind of electrode material for the potential application in supercapacitors.
authors.affiliation: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China.
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China.
authors.forename: Zhaoyang
authors.initials: Z
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Ding-Bang
authors.initials: DB
authors.lastname: Xiong
authors.affiliation: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China.
authors.forename: Yuqing
authors.initials: Y
authors.lastname: Qiao
authors.affiliation: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China.
authors.forename: Yongfu
authors.initials: Y
authors.lastname: Tang
authors.affiliation: Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China.
authors.forename: Faming
authors.initials: F
authors.lastname: Gao
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