Electrodeposition of gold nanoparticles to modify the boron-doped diamond electrode

Abstract

This work shows a method of modifying of boron-doped diamond electrode (BDDE) with gold nanoparticles (AuNPs) using electrodeposition. The optimization of the potential and time of electrodeposition of AuNPs was carried out. The obtained modified material of the working electrode was examined using scanning electron microscopy (SEM). The electrochemical properties were investigated using conventional inner sphere and outer sphere redox markers. An example of the use of a modified BDDE and lab-made screen-printed sensor (SPS) with modified BDD working electrode for dopamine neurotransmitter analysis is shown.