P-055
Magdalena Gurgul
gurgulm@chemia.uj.edu.pl
Bartłomiej Orczykowski, Leszek Zaraska
Faculty of Chemistry, Jagiellonian University in Krakow, Poland
Photoelectrochemical characteristics of nanostructured electrodes based on SnO2
In recent years, nanostructured metal oxides have garnered significant attention as potential photoactive materials for photoelectrochemical (PEC) water-splitting devices, primarily due to their resistance to photocorrosion and stability in aqueous environments [1]. While TiO₂ remains one of the most extensively investigated materials in this field, increasing research efforts have been directed toward SnO₂, owing to its advantageous properties, such as relatively high electron mobility and a favourable valence band position [2]. However, given that SnO2 mainly absorbs ultraviolet irradiation, SnO₂-based photoanodes require further research directed at enhancing their efficiency [3].
This study presents a comprehensive investigation into the synthesis and characterization of nanostructured tin oxide fabricated via selected techniques, including anodic oxidation (anodization) and modified chemical vapor deposition (CVD). The findings indicate that these approaches offer precise control over the morphology and structural properties of the resulting nanomaterials through tailoring synthesis parameters, thereby influencing their optical and photoelectrochemical properties. Furthermore, the presented results also suggest that structural and morphological features are essential for the designation of more complex, heterostructure-based photoelectrodes.
References:
[1] Sulka, G.D.; Nanostructured anodic metal oxides, Elsevier, Amsterdam, Netherlands, 2020.
[2] Van De Krol, R.; Gratzel, M. Photoelectrochemical Hydrogen Production; Springer: New York, 2012.
[3] M. Gurgul, R. Zazpe, J. Rodriguez-Pereira, L. Hromadko, J.M. Macak, L. Zaraska, Electrochim. Acta 519 (2025) 145854.
Acknowledgements:
This research was supported by National Science Centre Poland (contact no. UMO-2018/30/E/ST5/00531).