Advanced microwave-assisted production of hybrid electrodes for energy applications

Peter C. Sherrell, Jun Chen*, Joselito M. Razal, Ivan P. Nevirkovets, Carol Crean, Gordon G. Wallace, Andrew I. Minett

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Carbon nanotubes are one of the most prominent materials in research for creating electrodes for portable electronics. When coupled with metallic nanoparticles the performance of carbon nanotube electrodes can be dramatically improved. Microwave reduction is an extremely rapid method for producing carbon nanotube-metallic nanoparticle composites, however, this technique has so far been limited to carbon nanotube soot. An understanding of the microwave process and the interactions of metallic nanoparticles with carbon nanotubes have allowed us to extend this promising functionalisation route to pre-formed CNT electrode architectures. Nanoparticle reduction onto pre-formed architectures reduces metallic nanoparticle waste as particles are not formed where there is insufficient porosity for electrochemical processes. A two-fold increase in capacitive response, stable over 500 cycles, was observed for these composites, with a maximum capacitance of 300 F g-1 observed for a carbon Nanoweb electrode.

Original languageEnglish (US)
Pages (from-to)1979-1984
Number of pages6
JournalEnergy and Environmental Science
Volume3
Issue number12
DOIs
StatePublished - Dec 2010
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

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