Modification of boron-doped diamond with gold nanoparticles and its preliminary study for electrosynthesis of vanillin

R. P. Putranto, H. Mubarok, K. Umam, E. Saepudin, T. A. Ivandini

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Vanillin is generally synthesized from coniferin, cresol, ferulic acid, guaiacol, lignosulphonates, and vanillyl mandelic acid using oxidation-reduction methods with various chemicals and consecutive stages. These methods are less environmentally friendly due to their use of harmful compounds and the ineffective multistage process. In this study, we investigated electrochemical oxidation of isoeugenol to vanillin. A boron-doped diamond (BDD) modified by gold nanoparticles (AuNPs) was prepared for use as the working electrode, with sulfuric acid used as the electrolyte. Peak oxidation and reduction of BDD-AuNPs occurred at 1.20 V and 0.40 V, respectively, and a voltammetric range of -1.50 V to 1.50 V was applied to determine the potential oxidation of isoeugenol. The results indicated that the optimal pH for electrooxidation was 8, with potential oxidation occurring at 0.50 V.

Original languageEnglish
Article number012056
JournalIOP Conference Series: Materials Science and Engineering
Volume496
Issue number1
DOIs
Publication statusPublished - 22 Feb 2019
Event2nd International Conference on Current Progress in Functional Materials 2017, ISCPFM 2017 - Bali, Indonesia
Duration: 8 Nov 20179 Nov 2017

Keywords

  • boron-doped diamond
  • electrosynthesis
  • gold nanoparticles
  • isoeugenol
  • vanilin

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