Facilitation of high-rate NADH electrocatalysis using electrochemically activated carbon materials

Research output: Contribution to journalArticle

  • 9 Citations

Abstract

Electrochemical activation of glassy carbon, carbon paper and functionalized carbon nanotubes via high-Applied-potential cyclic voltammetry leads to the formation of adsorbed, redox active functional groups and increased active surface area. Electrochemically activated carbon electrodes display enhanced activity toward nicotinamide adenine dinucleotide (NADH) oxidation, and more importantly, dramatically improved adsorption of bioelectrochemically active azine dyes. Adsorption of methylene green on an electroactivated carbon electrode yields a catalyst layer that is 1.8-fold more active toward NADH oxidation than an electrode prepared using electropolymerized methylene green. Stability studies using cyclic voltammetry indicate 70% activity retention after 4000 cycles. This work further facilitates the electrocatalysis of NADH oxidation for bioconversion, biosensor and bioenergy processes.

LanguageEnglish (US)
Pages6687-6696
Number of pages10
JournalACS Applied Materials and Interfaces
Volume6
Issue number9
DOIs
StatePublished - May 14 2014

Profile

Electrocatalysis
NAD
Activated carbon
Oxidation
Electrodes
Cyclic voltammetry
Adsorption
Bioconversion
Carbon
Glassy carbon
Biosensors
Functional groups
Carbon Nanotubes
Carbon nanotubes
Dyes
Chemical activation
Catalysts
Coloring Agents
methylene green

Keywords

  • activity facilitation
  • azine adsorption
  • carbon nanotube
  • electrochemical activation
  • glassy carbon
  • NADH electrocatalysis

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Facilitation of high-rate NADH electrocatalysis using electrochemically activated carbon materials. / Li, Hanzi; Li, Rui; Worden, Robert M.; Barton, Scott Calabrese.

In: ACS Applied Materials and Interfaces, Vol. 6, No. 9, 14.05.2014, p. 6687-6696.

Research output: Contribution to journalArticle

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AU - Worden,Robert M.

AU - Barton,Scott Calabrese

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N2 - Electrochemical activation of glassy carbon, carbon paper and functionalized carbon nanotubes via high-Applied-potential cyclic voltammetry leads to the formation of adsorbed, redox active functional groups and increased active surface area. Electrochemically activated carbon electrodes display enhanced activity toward nicotinamide adenine dinucleotide (NADH) oxidation, and more importantly, dramatically improved adsorption of bioelectrochemically active azine dyes. Adsorption of methylene green on an electroactivated carbon electrode yields a catalyst layer that is 1.8-fold more active toward NADH oxidation than an electrode prepared using electropolymerized methylene green. Stability studies using cyclic voltammetry indicate 70% activity retention after 4000 cycles. This work further facilitates the electrocatalysis of NADH oxidation for bioconversion, biosensor and bioenergy processes.

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