• 文献标题:   Facile large-scaled fabrication of graphene-like materials by ultrasonic assisted shear exfoliation method for enhanced performance on flexible supercapacitor applications
  • 文献类型:   Article
  • 作  者:   XIE LQ, LI HF, YANG ZC, ZHAO XH, ZHANG HH, ZHANG P, CAO ZS, HE J, PAN P, LIU J, WEI J, SONG DY, QI W
  • 作者关键词:   ultrasonic assisted shear exfoliation, graphenelike structure, flexible supercapacitor, supercapacitor, resistive pressure sensor hybrid
  • 出版物名称:   APPLIED NANOSCIENCE
  • ISSN:   2190-5509 EI 2190-5517
  • 通讯作者地址:   Tianjin Univ Technol
  • 被引频次:   0
  • DOI:   10.1007/s13204-019-01189-w EA OCT 2019
  • 出版年:   2020

▎ 摘  要

In this work, we have developed a rapid and simple approach for fabrication of graphene-like materials. It consisted of shearing commercial graphite in aqueous solution with the assistance of ultrasonication. The results showed that the graphene-like materials were successfully fabricated with not only similar flake structure of graphene, but also improved conductivity. For the applications of flexible supercapacitors, the as-prepared graphene-like materials showed better specific capacitance than commercial graphite as the working electrode. In addition, the rate capability of the flexible supercapacitor device is 80% and the capacitance retention reaches 90% after 10,000 cycles. The high flexibility of the as-fabricated graphene-like materials gives rise to high flexibility of all-solid-state supercapacitors, and the specific capacitance was not affected by bending state. The as-fabricated supercapacitor further demonstrated that it can drive the resistive pressure sensor and the voltage was stable at a fixed value under different values of pressure.