Alternate Layers of Cobalt Doped Tungsten Oxide and Reduced Graphene Oxide Composite as Electrode Material for Supercapacitor
作者: P. Dhilip M. Niththiyanandam N. SethupathiP. Mahalingam
刊名: Asian Journal of Chemistry, 2020, Vol.32 (4)
来源数据库: Asian Journal of Chemistry
DOI: 10.14233/ajchem.2020.22470
关键词: Layered compositeDoped metal oxideRGOSpray techniqueSupercapacitor.
原始语种摘要: Composites consist of layers of cobalt doped tungsten oxide and reduced graphitic oxide was prepared using jet nebulized spray pyrolysis technique. A mixture of ammonium tungstate and cobalt acetate solution was coated on glass substrate at 380 °C using jet nebulized spray pyrolysis technique. Spray technique is used to form the reduced graphene oxide (rGO) layer over the first layer and again ammonium tungstate and cobalt acetate solution coated over the surface of rGO and then calcined in nitrogen atmosphere at 450 °C for 2 h. The composite were characterized using XRD, SEM, PL, CV and EIS studies. The SEM and XRD reveal the layered structure. Cyclic voltammetry reveals the high specific capacitance 500 Fg-1 at 5 mV s-1 scan rate for 2 M Na2SO4 as electrolyte. Layered structure of...
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关键词翻译
关键词翻译
  • layered 成层的
  • graphitic 石墨的
  • cobalt 
  • tungsten 
  • spray 喷雾
  • technique 技术
  • reveal 显露
  • pyrolysis 加热分解
  • capacitance 电容
  • tungstate 钨酸盐