@article{scholars3192,
          volume = {326-32},
            note = {cited By 7; Conference of 7th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2011 ; Conference Date: 26 June 2011 Through 30 June 2011; Conference Code:89746},
             doi = {10.4028/www.scientific.net/DDF.326-328.647},
           title = {Effect of synthesis duration on the physicochemical properties of siliceous mesoporous molecular sieve (Si-MMS)},
         address = {Algarve},
            year = {2012},
         journal = {Defect and Diffusion Forum},
       publisher = {Trans Tech Publications Ltd},
           pages = {647--653},
            issn = {10120386},
          author = {Ramli, A. and Ahmed, S. and Yusup, S.},
            isbn = {9783037854006},
        keywords = {Calcination; Desorption; Diffraction; Diffusion in solids; Heat transfer; Honeycomb structures; Liquids; Molecular sieves; Nanostructured materials; Pore structure; Sieves; Silica; Structural properties, High thermal stability; MCM-41 mesoporous material; Mesoporous molecular sieves; Physicochemical; Physicochemical property; Siliceous mesoporous molecular sieves; Synthesis durations; Synthesized materials, Mesoporous materials},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860789176&doi=10.4028\%2fwww.scientific.net\%2fDDF.326-328.647&partnerID=40&md5=dd98a7b2e59bddf7b424140b608b20ae},
        abstract = {Pure silica mesoporous molecular sieve (MMS) solid has been synthesized at 100{\^A}oC by hydrothermal process. The effect of synthesis duration from 2 to 10 days has been investigated on the physicochemical properties of mesoporous molecular sieve. Samples were characterized by low angle XRD, N2 adsorption-desorption and HRTEM analysis. XRD patterns of the as-synthesized samples showed four well-defined diffraction peaks corresponding to 100, 110, 200 and 210 planes. These peaks are the fingerprint characteristics of MCM-41 mesoporous material. The high intensity diffraction peaks were observed in 8-days sample that define the high ordering of the pores and long range order. N2 adsorption-desorption results showed that all samples possessed a type IV isotherm having hysteresis loop of type H1 which is an identification of mesoporous material. Calcined samples exhibited high surface area i.e., 984-1036 m2 g-1, pore volume i.e., 1.00-1.13 cm 3 g-1 and average pore diameter i.e., 3.04-3.30 nm. A hexagonal pore structure was found in the synthesized materials by HRTEM analysis, which confirms that the synthesized materials are MCM-41. HRTEM analysis showed the effect of synthesis duration on the materials and found that 8-days sample exhibited highly ordered hexagonal pore structure like honeycomb structure. All the samples were calcined at 550{\^A}oC to remove the template and to study the changes in the mesoporous framework. The results showed that the mesoporous structure remained intact after calcination at 550{\^A}oC, indicating that the mesoporous materials exhibit high thermal stability. {\^A}{\copyright} (2012) Trans Tech Publications.}
}