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

2nd International Conference on Current Progress in Functional Materials 2017

Putranto, R.P.^1 ; Mubarok, H.^1 ; Umam, K.^1 ; Saepudin, E.^1 ; Ivandini, T.A.^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Depok

16424, Indonesia^1

关键词: Boron doped diamond;    electrosynthesis;    Harmful compounds;    Isoeugenol;    Multistage process;    Oxidation and reduction;    Oxidation reduction;    Vanilin;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/496/1/012056/pdf
DOI  :  10.1088/1757-899X/496/1/012056

来源: IOP

【 摘 要 】

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.