Hybrid Carbon Film Electrodes for Electroanalysis

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  • NIWA Osamu
    Advanced Science Research Laboratory, Saitama Institute of Technology
  • OHTA Saki
    Advanced Science Research Laboratory, Saitama Institute of Technology
  • TAKAHASHI Shota
    Advanced Science Research Laboratory, Saitama Institute of Technology
  • ZHANG Zixin
    Advanced Science Research Laboratory, Saitama Institute of Technology
  • KAMATA Tomoyuki
    Health and Medical Institute, National Institute of Advanced Industrial Science and Technology (AIST)
  • KATO Dai
    Health and Medical Institute, National Institute of Advanced Industrial Science and Technology (AIST)
  • SHIBA Shunsuke
    Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University

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Abstract

<p>Carbon materials have been widely used for electrochemical analysis and include carbon nanotubes, graphene, and boron-doped diamond electrodes in addition to conventional carbon electrodes, such as those made of glassy carbon and graphite. Of the carbon-based electrodes, carbon film has advantages because it can be fabricated reproducibly and micro- or nanofabricated into electrodes with a wide range of shapes and sizes. Here, we report two categories of hybrid-type carbon film electrodes for mainly electroanalytical applications. The first category consists of carbon films doped or surface terminated with other atoms such as nitrogen, oxygen and fluorine, which can control surface hydrophilicity and lipophilicity or electrocatalytic performance, and are used to detect various electroactive biochemicals. The second category comprises metal nanoparticles embedded in carbon film electrodes fabricated by co-sputtering, which exhibits high electrocatalytic activity for environmental and biological samples including toxic heavy metal ions and clinical sugar markers, which are difficult to detect at pure carbon-based electrodes.</p>

Journal

  • Analytical Sciences

    Analytical Sciences 37 (1), 37-47, 2021-01-10

    The Japan Society for Analytical Chemistry

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