title: Three-Dimensional NiMoO4 Nanosheets Supported on a Carbon Fibers@Pre-Treated Ni Foam (CF@PNF) Substrate as Advanced Electrodes for Asymmetric Supercapacitors.
abstract: Herein, we report a nanoarchitectured nickel molybdate/carbon fibers@pre-treated Ni foam (NiMoO4 /CF@PNF) electrode for supercapacitors. The synthesis of NiMoO4 /CF@PNF mainly consists of a direct chemical vapor deposition (CVD) growth of dense carbon fibers (CFs) onto pre-treated Ni foam (PNF) as the substrate, followed by in situ growth of NiMoO4 nanosheets (NSs) on the CF@PNF substrate by means of a hydrothermal process. The NiMoO4 /CF@PNF electrode exhibits a high areal capacitance (5.14 F cm(-2) at 4 mA cm(-2) ) and excellent cycling stability (97 % capacitance retention after 2000 cycles at 10 mA cm(-2) ). Furthermore, we have successfully assembled NiMoO4 NSs//activated carbon (AC) asymmetric supercapacitors, which can achieve an energy density of 45.6 Wh kg(-1) at 674 W kg(-1) , and excellent stability with 93 % capacitance retention after 2000 cycles at 5 mA cm(-2) . These superior properties hold great promise for energy-storage applications.
authors.affiliation: College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P.R. China.
authors.forename: Caixia
authors.initials: C
authors.lastname: Zhou
authors.affiliation: College of Chemical Engineering, Sichuan University, Chengdu, 610064, P.R. China.
authors.forename: Wen
authors.initials: W
authors.lastname: Yang
authors.affiliation: College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P.R. China.
authors.forename: Guangfeng
authors.initials: G
authors.lastname: Zeng
authors.affiliation: College of Chemical Engineering, Sichuan University, Chengdu, 610064, P.R. China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Lei
authors.affiliation: College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P.R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Gu
authors.affiliation: College of Chemical Engineering, Sichuan University, Chengdu, 610064, P.R. China.
authors.forename: Xianghui
authors.initials: X
authors.lastname: Xi
authors.affiliation: College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P.R. China. xiaodan@scu.edu.cn.|College of Chemical Engineering, Sichuan University, Chengdu, 610064, P.R. China. xiaodan@scu.edu.cn.
authors.forename: Dan
authors.initials: D
authors.lastname: Xiao
keywords: capacitors; chemical vapor deposition; hydrothermal synthesis; nanostructures; nickel