• 文献标题:   Morphology-controllable synthesis of NiFe2O4 growing on graphene nanosheets as advanced electrode material for high performance supercapacitors
  • 文献类型:   Article
  • 作  者:   GAO XC, BI JQ, WANG WL, LIU HZ, CHEN YF, HAO XX, SUN XN, LIU R
  • 作者关键词:   nife2o4 nanosheet, graphene nanosheet, composite, hydrothermal method, supercapacitor
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:   Shandong Univ
  • 被引频次:   5
  • DOI:   10.1016/j.jallcom.2020.154088
  • 出版年:   2020

▎ 摘  要

Morphology of transition metal oxide largely affects its electrochemical energy storage properties. This also applies to its composites. In this paper, NiFe2O4/Graphene nanosheets composites (NFO/GNSs) are successfully prepared by a facile hydrothermal method. NiFe2O4 (NFO) in the sample exhibits a unique nanosheet morphology, vertically arranging on the graphene nanosheets (GNSs). Microscopically, NFO nanosheets interpenetrate on the surface of graphene to form a continuous network structure. The sample exhibits excellent specific capacitance and rate performance. It is worth mentioning that the specific capacitance increases to 140% after 5000 cycles, showing superior cycle stability. This may be due to the conductive network formed by NFO nanosheets and GNSs. Excellent electrochemical performance indicates excellent application prospects of materials in supercapacitor electrodes. (C) 2020 Elsevier B.V. All rights reserved.