Graphene supercapacitor electrodes fabricated by inkjet printing and thermal reduction of graphene oxide

Linh T. Le, Matthew H. Ervin, Hongwei Qiu, Brian E. Fuchs, Woo Y. Lee

Research output: Contribution to journalArticlepeer-review

378 Scopus citations

Abstract

Graphene oxide nanosheets, stably dispersed in water at 0.2 wt.%, were inkjet-printed onto Ti foils and thermally reduced at 200 °C in N 2, as a new method of fabricating inkjet printed graphene electrodes (IPGEs) for supercapacitors. The specific capacitance of IPGE ranged from 48 to 132 F/g, depending on the potential scan rate from 0.5 to 0.01 V/s using 1M H2SO4 as the electrolyte. The initial performance of IPGEs compares favorably to that reported for graphene electrodes prepared by other fabrication methods. This new finding is expected to be particularly useful for designing and fabricating inter-digitized electrode arrays with a lateral spatial resolution of ~ 50 μm for flexible micro-supercapacitors.

Original languageEnglish
Pages (from-to)355-358
Number of pages4
JournalElectrochemistry Communications
Volume13
Issue number4
DOIs
StatePublished - Apr 2011

Keywords

  • Electrodes
  • Flexible electronics
  • Graphene
  • Graphene oxide
  • Inkjet printing
  • Supercapacitors

Fingerprint

Dive into the research topics of 'Graphene supercapacitor electrodes fabricated by inkjet printing and thermal reduction of graphene oxide'. Together they form a unique fingerprint.

Cite this