Multifunctional, durable and highly conductive graphene/sponge composites

Qingshi Meng, Yin Yu, Jiayu Tian, Zhaokun Yang, Shuang Guo, Rui Cai, Sensen Han, Tianqing Liu, Jun Ma

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Porous functional materials play important roles in a wide variety of growing research and industrial fields. We herein report a simple, effective method to prepare porous functional graphene composites for multi-field applications. Graphene sheets were non-chemically modified by Triton®X-100, not only to maintain high structural integrity but to improve the dispersion of graphene on the pore surface of a sponge. It was found that a graphene/sponge nanocomposite at 0.79 wt.% demonstrated ideal electrical conductivity. The composite materials have high strain sensitivity, stable fatigue performance for 20,000 cycles, short response time of 0.401s and fast response to temperature and pressure. In addition, the composites are effective in monitoring materials deformation and acoustic attenuation with a maximum absorption rate 67.78% and it can be used as electrodes for a supercapacitor with capacitance of 18.1 F/g. Moreover, no expensive materials or complex equipment are required for the composite manufacturing process. This new methodology for the fabrication of multifunctional, durable and highly conductive graphene/sponge nanocomposites hold promise for many other applications.
Original languageEnglish
Article number465502
Number of pages15
JournalNanotechnology
Volume31
Issue number46
DOIs
Publication statusPublished - 2020

Keywords

  • graphene
  • nanocomposites (materials)
  • porous materials
  • sponges

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