Fabrication and characterization of micro-band boron-doped diamond electrode for an application in adenosine phosphates sensor

International Symposium on Current Progress in Functional Materials

Prayikaputri, P.U.^1 ; Gunlazuardi, J.^1 ; Ivandini, T.A.^1

Department of Chemistry, Faculty of Mathematics, Natural Sciences Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^1

关键词: Band electrode;    BDD electrodes;    Boron doped diamond;    Boron doped diamond electrodes;    Boron-doped diamond films;    Fabrication and characterizations;    Oxidation peak;    Silicon rubbers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/188/1/012035/pdf
DOI  :  10.1088/1757-899X/188/1/012035

来源: IOP

【 摘 要 】

Micro-band electrode was successfully fabricated by lamination method through sealing a piece of boron-doped diamond film inside a sandwich of two insulating plates, namely Teflon and silicon rubber as the gaskets. Characterization was performed using Raman and XPS spectra of the BDD film, while the fabricated micro-band was characterized by analyzing its SEM image. The electrode was examined for cyclic voltammetry of adenosine triphosphate solution, where an oxidation peak at +0.9 V vs. Ag/AgCl can be observed. The influence of scan rate and pH was also studied, in which pH 2 was selected as the optimum pH. The diffusion coefficient of 0.1 mM ATP at micro-band electrode was 3.84 x 10-8m2/s, while the effective surface of the micro-band BDD electrode was 8.72 x 10-14m2.