Pt-implanted boron-doped diamond electrodes and the application for electrochemical detection of hydrogen peroxide

Ivandini Tribidasari Anggraningrum, Rika Sato, Yoshihiro Makide, Akira Fujishima, Yasuaki Einaga

Research output: Contribution to journalConference articlepeer-review

58 Citations (Scopus)

Abstract

Pt-modified diamond electrodes were fabricated for electroanalytical applications by implantation method at 750 keV Pt2+ with a dose of 5 × 1014 cm- 2. The electrochemical behavior has been studied for oxidation of hydrogen peroxide by using cyclic voltammetry and flow injection analysis in phosphate buffer solution (pH 7). The electrode exhibited high catalytic activity and excellent electrochemical stability with a very low background current in comparison to Pt metal electrode. Very low limit of detection, 30 nM (S / N = 3), were examined with RSD of 2.91% (n = 20). These results indicate that metal-implanted method could be a promising method for controlling the electrochemical properties of diamond electrodes.

Original languageEnglish
Pages (from-to)2133-2138
Number of pages6
JournalDiamond and Related Materials
Volume14
Issue number11-12
DOIs
Publication statusPublished - 1 Nov 2005
EventProceedings of the 10th International Conference on New Diamond Science and Technology (ICNDST-10) ICNDST-10 Special Issue -
Duration: 11 May 200514 May 2005

Keywords

  • Diamond electrodes
  • Electrochemical detection
  • Flow injection
  • Hydrogen peroxide
  • Ion implantation
  • Platinum

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