Publication detail

Boron-Doped Diamond Electrode Modified With Platinum Nanoparticles

Authors: Matvieiev Oleksandr | Šelešovská Renáta | Kamarád Dominik | Vojs Marian | Marton Marián

Year: 2025

Type of publication: ostatní - článek ve sborníku

Name of source: 44th modern electrochemical methods : proceedings of the international conference

Publisher name: BEST Servis

Place: Ústí nad Labem

Page from-to: 101-105

Titles:

Language	Name	Abstract	Keywords
eng	Boron-Doped Diamond Electrode Modified With Platinum Nanoparticles	This study presents the electrochemical characterization of boron-doped diamond (BDD) screen-printed electrodes modified with platinum nanoparticles (PtNPs). Scanning electron mi-croscopy confirmed the homogeneous distribution of PtNPs on the electrode surface, while Raman spectroscopy revealed no structural changes to the BDD substrate after modification. Statistical image analysis showed that nanoparticle size, surface coverage, and interparticle dis-tance were tunable by varying the nominal Pt film thickness. Electrochemical behavior was in-vestigated using cyclic voltammetry and electrochemical impedance spectroscopy with a range of redox markers. The presence of PtNPs significantly enhanced the electron transfer kinetics, especially for “inner-sphere” systems such as ferri/ferrocyanide and dopamine. Furthermore, the modified electrodes demonstrated improved reproducibility and higher sensitivity in differ-ential pulse voltammetry measurements. These findings suggest that thin PtNP coatings (1 nm) are sufficient to achieve substantial performance gains, offering a cost-effective approach for scalable sensor development.	Screen-printed sensors, Boron-doped diamond electrode, Modification, Platinum Nanoparti-cles, Redox marker, Cyclic voltammetry, Electrochemical impedance spectroscopy.

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