• 文献标题:   General fabrication of metal oxide nanoparticles modified graphene for supercapacitors by laser ablation
  • 文献类型:   Article
  • 作  者:   ZHU CG, DONG X, MEI XS, GAO M, WANG KDA, ZHAO DM
  • 作者关键词:   laserinduced graphene, metal oxide nanoparticle, laser ablation in liquid, microsupercapacitor
  • 出版物名称:   APPLIED SURFACE SCIENCE
  • ISSN:   0169-4332 EI 1873-5584
  • 通讯作者地址:  
  • 被引频次:   8
  • DOI:   10.1016/j.apsusc.2021.150978 EA AUG 2021
  • 出版年:   2021

▎ 摘  要

Metal oxide nanoparticles (MONPs)-graphene composites are highly valued candidate electrode materials for electrochemical supercapacitor (SC). Here, we described the development of a versatile approach for fabricating SC electrodes by impregnating MONPs (M = Ti, Ni, Sn) synthesized by laser ablation in liquid on laser-induced graphene (LIG). A typical SnO2/LIG micro-supercapacitor (MSC) delivers an area-specific capacitance of 18.58 mF cm-2 at a scan rate of 10 mV s-1, which is 5.2 times greater than the unmodified LIG. Moreover, the MSC exhibits long-life cycling stability (retaining 82.15% of specific capacitance after 5000 cycles) and good mechanical flexibility (specific capacitance is reduced by 5% at bending angle of 150 degrees). MONPs and LIG are prepared using the same laser processing system, and no chemical ligands or reducing agents used in the synthesis process, which is cost-effective and green. This simple and straightforward method provide a highly operable solution for the large-scale preparation of MSC.