SYNTHESIS AND CHARACTERIZATIONS OF MOF-5 MATERIALS BY NON- SURFACTANT TEMPLATING METHOD FOR AMMONIA STORAGE
S.Z. Othman*, H. Misran, A.M. Aminuddin, M.A. Salim, N. N. H. Shah and N. A. A. Razak
AbstractSYNTHESIS AND CHARACTERIZATIONS OF MOF-5 MATERIALS BY NON- SURFACTANT TEMPLATING METHOD FOR AMMONIA STORAGE
S.Z. Othman*1, H. Misran1, A.M. Aminuddin1, M.A. Salim1, N. N. H. Shah1 and N. A. A. Razak1
Nanoarchitectonic Lab, Center for Renewable Energy, College of Engineering, Universiti Tenaga Nasional, Jalan Ikram-Uniten, 43000 Kajang, Selangor, MALAYSIA.
Metal-organic frameworks (MOF-5) with non-surfactant templating method were successfully synthesized with cubic and tetragonal structure at ca. 0.26-0.63 mm. The syntheses were conducted at ambient condition, i.e. room temperature and pressure. Three types of fatty alcohols with different chain length were used namely octyl alcohol, decyl alcohol and dodecyl alcohol. The results suggested that fatty alcohol chain length affected the relative crystallinity, morphology and competitive ammonia adsorption properties of MOF-5. MOF-5 synthesized with longer carbon chain fatty alcohol i.e. dodecyl alcohol resulted in higher relative crystallinity and higher ammonia uptake up to c.a. 4.6%. However, exposure to ammonia partially destroyed the crystal structure.
Keywords: MOF-5, fatty alcohol, non-surfactant template, crystal structure, ammonia uptake