title: Growth of NiCo2O4@MnMoO4 Nanocolumn Arrays with Superior Pseudocapacitor Properties.
abstract: Three-dimensional heterostructured NiCo2O4@MnMoO4 nanocolumn arrays (NCAs) on Ni foam were first fabricated through an improved two-step hydrothermal process associated with a successive annealing treatment. The hybrid NiCo2O4@MnMoO4 electrode exhibited remarkable pseudocapacitor property with high initial mass specific capacitance of 1705.3 F g(-1) at 5 mA cm(-2), and retained 92.6% after 5000 cycles, compared to the bare NiCo2O4 electrode with 839.1 F g(-1) and 90.9%. The excellent capacitive property of the NiCo2O4@MnMoO4 hydrid was attributed to its high-electron/ion-transfer rate, large electrolyte infiltrate area, and more electroactive reaction sites.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Cui
authors.affiliation: Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States.
authors.forename: Jiantie
authors.initials: J
authors.lastname: Xu
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Di
authors.initials: D
authors.lastname: Guo
authors.forename: Minglei
authors.initials: M
authors.lastname: Mao
authors.forename: Jianmin
authors.initials: J
authors.lastname: Ma
authors.forename: Taihong
authors.initials: T
authors.lastname: Wang
keywords: NiCo2O4@MnMoO4; hydrothermal method; nanocolumn arrays; sacrificial template; supercapacitor; synergistic effect