Flexible solid-state supercapacitor based on tin oxide/reduced graphene oxide/bacterial nanocellulose

Keng Ku Liu, Qisheng Jiang, Clayton Kacica, Hamed Gholami Derami, Pratim Biswas, Srikanth Singamaneni

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

We demonstrate a flexible and light-weight supercapacitor based on bacterial nanocellulose (BNC) incorporated with tin oxide (SnO2) nanoparticles, graphene oxide (GO) and poly(3,4-ethylenedioxyiophene)-poly(styrenesulfonate) (PEDOT:PSS). The SnO2 and GO flakes are introduced into the fibrous nanocellulose matrix during bacteria-mediated synthesis. The flexible PEDOT:PSS/SnO2/rGO/BNC electrodes exhibited excellent electrochemical performance with a capacitance of 445 F g-1 at 2 A g-1 and outstanding cycling stability with 84.1% capacitance retention over 2500 charge/discharge cycles. The flexible solid-state supercapacitors fabricated using PEDOT:PSS/SnO2/rGO/BNC electrodes and poly(vinyl alcohol) (PVA)-H2SO4 coated BNC as a separator exhibited excellent energy storage performance. The fabrication method demonstrated here is highly scalable and opens up new opportunities for the fabrication of flexible cellulose-based energy storage devices.

Original languageEnglish (US)
Pages (from-to)31296-31302
Number of pages7
JournalRSC Advances
Volume8
Issue number55
DOIs
StatePublished - 2018
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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