Biochar-derived material decorated by MXene/reduced graphene oxide using one-step hydrothermal treatment as high-performance supercapacitor electrodes

Yi Sun, Yudan Yuan, Xianwei Geng, Chi Han, Shenkai Lu, Ivona Mitrovic, Li Yang*, Pengfei Song*, Cezhou Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A simple hydrothermal reaction of Ti3C2Tx and reduced graphene oxide (rGO) nanosheets to adjust the pore size of activated biomass materials (pleurotus eryngii) is presented. The unique structure produced is favourable for the ion transmission and reducing the restacking of Ti3C2Tx and rGO nanosheets. The effect of the addition quantities of Ti3C2Tx/rGO hydrogel on the specific capacitance is investigated. Under the optimal condition, the best specific capacitance of 403 F g−1 is observed at 2 mV s−1, which is approximately 1.5 times higher than that of the pure activated pleurotus eryngii. Our work possesses a technological strategy to reuse the commercial activated biochar as it can lead to broad industrial applications.

Original languageEnglish
Pages (from-to)224-232
Number of pages9
JournalCarbon
Volume199
DOIs
Publication statusPublished - 31 Oct 2022

Keywords

  • Activated carbon
  • Biomass
  • Reduced graphene oxide
  • Supercapacitor
  • Two-dimensional titanium carbide

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