title: Three-dimensional Co₃O₄@NiMoO₄ core/shell nanowire arrays on Ni foam for electrochemical energy storage.
abstract: In this work, we report a facile two-step hydrothermal method to synthesize the unique three-dimensional Co3O4@NiMoO4 core/shell nanowire arrays (NWAs) on Ni foam for the first time. The Co3O4 nanowires are fully covered by ultrathin mesoporous NiMoO4 nanosheets. When evaluated as a binder-free electrode for supercapacitors in a 2 M KOH aqueous solution, the Co3O4@NiMoO4 hybrid electrode exhibits a greatly enhanced areal capacitance of 5.69 F cm(-2) at a high current density of 30 mA cm(-2), nearly 5 times that of the pristine Co3O4 electrode (1.10 F cm(-2)). The energy density of the hybrid electrode is 56.9 W h kg(-1) at a high power density of 5000 W kg(-1). In addition, the Co3O4@NiMoO4 hybrid electrode also exhibits good rate capability and cycling stability, which would hold great promise for electrochemical energy storage.
authors.affiliation: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University , Xiamen 361000, People's Republic of China.
authors.forename: Daoping
authors.initials: D
authors.lastname: Cai
authors.forename: Dandan
authors.initials: D
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Lingling
authors.initials: L
authors.lastname: Wang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liu
authors.forename: Han
authors.initials: H
authors.lastname: Li
authors.forename: Yanrong
authors.initials: Y
authors.lastname: Wang
authors.forename: Qiuhong
authors.initials: Q
authors.lastname: Li
authors.forename: Taihong
authors.initials: T
authors.lastname: Wang