20.500.12556/DiRROS-24129 The formation and properties of large-surface-area intergranular mesoporous Al2O3 particles Mesoporous γ-Al2O3 with pores formed between nanocrystals was synthesized via the hydrothermal method, varying the ethanolamines (monoethanolamine, diethanolamine, triethanolamine), pH values (6.5, 7.5, 8.5) and the temperature of the thermal treatment. Characterization techniques, including nitrogen physisorption, X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric-differential scanning calorimetry-mass spectrometry (TG-DSC-MS), and transmission electron microscopy (TEM), were employed to study the textural and structural properties of the materials. Thermal treatment at 500 ◦C produced mesoporous γ-Al2O3 with pores formed between nanoparticles. The materials synthesized with triethanolamine exhibited the narrowest pore size distribution and the highest specific surface area, particularly at higher pH values. The thermal treatment temperature significantly influenced the textural properties and crystallinity, with γ-Al2O3 retained up to 900 ◦C and the transformation to non-porous α-Al2O3 occurring at 1300 ◦C. These results demonstrate the critical role of synthesis parameters in understanding and optimizing the pore size and phase stability of mesoporous alumina. mesoporous Al2O3 hydrothermal method intergranular porosity ethanolamines influence of pH temperature of thermal treatment mezoporozni Al2O3 hidrotermalna metoda meddelčna poroznost etanolamini vpliv pH temperatura termične obdelave true false true Elsevier Angleški jezik Slovenski jezik © 2025 The Authors Neznano 2025-11-17 09:49:59 2025-11-17 09:55:48 2025-12-01 07:59:08 0000-00-00 00:00:00 2025 0 0 str. 36349-36358 part A iss. 22 Sep. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-05-28 54 1873-3956 10.1016/j.ceramint.2025.05.353 238001923 https://doi.org/10.1016/j.ceramint.2025.05.353 0 673b582e-c392-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35900 RAZ_Sparlek_Klara_2025.pdf RAZ_Sparlek_Klara_2025.pdf 1 E01240C05C041AD3C2D28FEBAAC45038 7cf66c8d81de540196c0312fbd0b12ab1d08dc1b551403f2bc805d4fd81e1183 0519f336-c393-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35901 RAZ_Sparlek_Klara_2025.docx RAZ_Sparlek_Klara_2025.docx Appendix A. Supplementary data 1 E308D6B1E6B9B7C613450BF6A45CCFE9 072f3507c39befd3f6a45a2d88a6478020be130b208ce2eb269043c80e8286f3 2624f227-c393-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35902 Zavod za gradbeništvo Slovenije 0 0 0