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TEMPERATURE-INDUCED CHANGES IN PORE STRUCTURE AND CATALYTIC PERFORMANCE OF ALUMINUM OXIDE MEMBRANES

Anvar Khamidov, Farhodjon Hoshimov, Khakimjan Butanov, Shavkat Mamatkulov, Bahrom Umarov, Dong Fang, Mika Sillanpää, Luca Pasquini, Philippe Knauth, Olim Ruzimuradov

In this study, we synthesized nanostructured anodic aluminum oxide (AAO) membranes through the two-step anodization process using oxalic acid as the electrolyte. The main objective was to investigate how the electrolyte temperature influences the formation of pores in the AAO membranes. Key parameters, including pore…

DOI: 10.32737/2221-8688-2025-4-533-541

SYNTHESIS OF NANOCOMPOSITE MATERIALS BASED ON TiO2 NANOTUBES AND POLYMETHYLENE NAPHTHYLENE SULFONATE AND THEIR ELECTROPHYSICAL PROPERTIES

Sh. Djumagulov¹, B. Umarov¹, A. Khamidov², O. Ruzimuradov², A. Kenjaev³

In this study, nanocomposite materials based on titanium dioxide and polymethylene naphthalene sulfonate (PMNS) were investigated. The main objective was to evaluate the enhancement in ionic conductivity of the synthesized TiO₂/PMNS nanocomposites. Key structural parameters—including nanotube diameter, wall thickness, and pore spacing—were measured and statistically…

Keywords: anodizing, ammonium fluoride, water, pore diameter, naphthalene, polymethylene naphthalene sulfonate, electrical conductivity.

DOI: 10.65382/2221-8688-2026-4-515-524