000170296 001__ 170296 000170296 005__ 20260410165451.0 000170296 0247_ $$2doi$$a10.1016/j.surfin.2026.108989 000170296 0248_ $$2sideral$$a148835 000170296 037__ $$aART-2026-148835 000170296 041__ $$aeng 000170296 100__ $$aGüemes, Lucas$$uUniversidad de Zaragoza 000170296 245__ $$aGaining insight into the synthesis of nanosized pure zeolite NaA 000170296 260__ $$c2026 000170296 5060_ $$aAccess copy available to the general public$$fUnrestricted 000170296 5203_ $$aIn zeolite synthesis, controlling and reducing the particle size is advantageous for different processes in which mass transfer occurs through surface active sites. In this work, the hydrothermal synthesis of zeolite NaA has been studied in detail seeking to control the size, morphology and crystal phase of the resulting zeolite particles. Adjusting the crystallization conditions and molar composition of a SiO2-Al2O3-TMA2O-Na2O-H2O system allows for the consistent production of zeolite NaA with a particle size down to 68 nm measured by TEM, using tetramethylammonium (TMA) as the organic structure directing agent (OSDA). Within the composition region in which the LTA zeolite crystallization is favored, syntheses at higher OSDA/Na+ and Si/Al atomic ratios produce smaller particles. Depending on the synthesis gel molar formulation, different morphologies and sizes of LTA crystals (in the ~68–760 nm range) with slightly distinct Si/Al atomic ratios (in the 1.1–2.3 range) can be achieved. The synthesized zeolites were characterized in detail by different techniques, and their textural properties were evaluated through CO2 and N2 adsorption and correlated with their composition. 000170296 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T68-23R$$9info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S$$9info:eu-repo/grantAgreement/ES/MICIU/PID2022-138582OB-I00 000170296 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es 000170296 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000170296 700__ $$0(orcid)0000-0003-1512-4500$$aCoronas, Joaquín$$uUniversidad de Zaragoza 000170296 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, Carlos$$uUniversidad de Zaragoza 000170296 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química 000170296 773__ $$g87 (2026), 108989 [12 pp.]$$tSurfaces and Interfaces$$x2468-0230 000170296 8564_ $$s8253233$$uhttps://zaguan.unizar.es/record/170296/files/texto_completo.pdf$$yVersión publicada 000170296 8564_ $$s2773180$$uhttps://zaguan.unizar.es/record/170296/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000170296 909CO $$ooai:zaguan.unizar.es:170296$$particulos$$pdriver 000170296 951__ $$a2026-04-10-13:46:04 000170296 980__ $$aARTICLE