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

    Research output: Research - peer-reviewArticle

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

    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: Research - peer-reviewArticle

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    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.",
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    AU - Worden,Robert M.

    AU - Barton,Scott Calabrese

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    AB - 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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