Cyclic Voltammetry-Assisted Electrodeposition of TiO2/PANI Thin Films on Boron-Doped Diamond and Fluorine-Doped Tin Oxide: Effect of Composition on Interfacial and Electrochemical Properties
Year: 2026
Type: article
Abstract: This study presents the successful electrodeposition of polyaniline (PANI) and TiO2/PANI composites on boron-doped diamond (BDD) and fluorine-doped tin oxide (FTO) substrates via cyclic voltammetry. Using 20 scan cycles in 0.5 M H2SO4, we synthesized thin films with tailored electrochemical properties. The formation of PANI was confirmed by characteristic redox peaks in the voltammograms, while FTIR spectroscopy identified key functional groups and bonding interactions between TiO2 and PANI. Morphological analysis via optical and scanning electron microscopy revealed uniform but cracked surfaces influenced by TiO2 loading. Composite electrodes with molar ratios of 2:1, 4:1, and 6:1 (TiO2:PANI) were compared, showing increased titanium content with higher ratios, as confirmed by EDS. This work offers a reproducible route for designing modified electrodes with enhanced interfacial properties.
Source: Surfaces
Institutions: Tecnológico Nacional de México, Universidad de Guanajuato
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,930
OpenAlex ID: W7138138582