• 文献标题:   Synthesis and electrochemical performance evaluation of La doped TiO2/reduced graphene oxide nanocomposites for supercapacitor application
  • 文献类型:   Article
  • 作  者:   RASHEED S, ALI G, KOUSAR R, RAZA MA, KUBRA KT, IFTIKHAR FJ
  • 作者关键词:   nanocomposite, hydrothermal method, speci fic capacitance, stability
  • 出版物名称:   JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • ISSN:   1572-6657 EI 1873-2569
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1016/j.jelechem.2022.117015 EA NOV 2022
  • 出版年:   2023

▎ 摘  要

Lanthanum (La) doped titania (TiO2)/reduced graphene oxide (RGO) nanocomposites with varying amounts of lanthanum have been synthesized as promising electrode materials for supercapacitors. TiO2/RGO, 0.5 wt% La doped TiO2/RGO, 1 wt% La doped TiO2/RGO, and 2 wt% La doped TiO2/RGO nanocomposites are synthesized using the facile hydrothermal method. The prepared nanocomposites were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and energy dispersive spectroscopy. The effect of the increasing amount of lanthanum as a dopant on the electrochemical performance of nanocom-posites has been studied. The 2 wt% La doped TiO2/RGO composite exhibits the highest specific capacitance of 117.6F/g at 10 mV s-1 and also shows better supercapacitive behavior in terms of cyclic stability (91.42 % after 10,000 cycles), energy density, and power density as compared to other nanocomposites.