• 文献标题:   Hierarchical design of Ni(OH)(2)/MnMoO4 composite on reduced graphene oxide/Ni foam for high- performances battery-supercapacitors hybrid device
  • 文献类型:   Article
  • 作  者:   LI HS, XUAN HC
  • 作者关键词:   batterysupercapacitor, ni oh 2 /mnmoo4 composite, highenergy density, cyclic stability
  • 出版物名称:   INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • ISSN:   0360-3199 EI 1879-3487
  • 通讯作者地址:  
  • 被引频次:   7
  • DOI:   10.1016/j.ijhydene.2021.09.083 EA OCT 2021
  • 出版年:   2021

▎ 摘  要

Design and synthesis advanced battery-type electrode materials with outstanding electrical conductivity and remarkable theoretical specific capacity are crucial to enhance the comprehensive performances for battery-supercapacitors (SCs). Herein, Ni(OH)(2)/MnMoO4 composite on reduced graphene oxide/Ni foam (rGO/NF) was successfully fabricated through the hydrothermal method and potentiostatic electrodeposition (Ni(OH)(2)/MnMoO4/rGO/NF). The unique honeycomb structure and the efficient synergistic effects among MnMoO4 and Ni(OH)(2) of the as-prepared battery type electrode, as well as outstanding electronic conductivity of the reduced graphene oxide, were beneficial to the enhanced electrochemically active sites and increased specific capacity. Ni(OH)(2)/MnMoO4/rGO/NF composite employed for SCs yielded the maximum specific capacity of 1329.1 C g(-1) and a superb cycle property of 86.8% during 5000 cycles. Furthermore, the battery-supercapacitor hybrid (BSH) device with the Ni(OH)(2)/MnMoO4/rGO/NF and active carbon (AC) as-prepared samples showed the energy density of 61.4 W h kg(-1) at the power density of 428.4 W kg(-1). The capacity retention of the as-fabricated hybrid device reached 96.4% over 7000 cycles. Those consequences tested that the Ni(OH)(2)/MnMoO4/rCO/NF composite should be the promising category of battery-type electrodes materials of the next generation energy storage devices for the high-performances SCs. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.