• 文献标题:   Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO2 composites and their electrochemical properties as supercapacitors
  • 文献类型:   Article
  • 作  者:   XING RG, LI RH, GE X, ZHANG QW, ZHANG BW, BULIN CK, SUN H, LI YN
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Inner Mongolia Univ Sci Technol
  • 被引频次:   1
  • DOI:   10.1039/c7ra13394d
  • 出版年:   2018

▎ 摘  要

A novel 1,3-dicarbonyl-functionalized reduced graphene oxide (rDGO) was prepared by N-(4-aminophenyl)-3-oxobutanamide interacting with the epoxy and carboxyl groups of graphene oxide. The high-performance composite supercapacitor electrode material based on MnO2 nanoparticles deposited onto the rDGO sheet (DGM) was fabricated by a hydrothermal method. The morphology and microstructure of the composites were characterized by field-emission scanning electron microscopy, transmission electron microscopy, Raman microscopy and X-ray photoelectron spectroscopy. The obtained results indicated that MnO2 was successfully deposited on rDGO surfaces. The formed composite electrode materials exhibit excellent electrochemical properties. A specific capacitance of 267.4 F g(-1) was obtained at a current density of 0.5 A g(-1) in 1 mol L-1 H2SO4, while maintaining high cycling stability with 97.7% of its initial capacitance after 1000 cycles at a current density of 3 A g(-1). These encouraging results are useful for potential energy storage device applications in high-performance supercapacitors.