Increasing the electric double-layer capacitance in boron-doped diamond electrodes

Kazuaki Takagi, Keisuke Natsui, Takeshi Watanabe, Yasuaki Einaga

Research output: Contribution to journalArticle

3 Citations (Scopus)


Highly boron-doped diamond (BDD) electrodes containing sp 2 carbon impurities exhibit an increase in the electric doublelayer capacitance (C dl ) after anodic oxidation. Although it is known that the electrochemical properties of BDD electrodes are affected by several factors, including the boron concentration, the amount of sp 2 carbon impurity, and the surface termination and orientation, clarification of the mechanism for the increase in C dl needs to be done. To this end, we prepared several BDD samples under various conditions and the properties of these samples, including C dl , were systematically investigated. The mechanism for the increase in C dl in particular, including the effect of the surface termination, is discussed.

Original languageEnglish
Pages (from-to)1683-1687
Number of pages5
Issue number6
Publication statusPublished - 2019 Jan 1



  • Boron-doped diamond
  • Double-layer capacitance
  • Electrochemistry
  • Electrode
  • Sp carbon

ASJC Scopus subject areas

  • Catalysis
  • Electrochemistry

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