caa a22 4500 463232089 CHVBK 20180405153245.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10853-006-1170-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1170-9 Synthesis and characterization of ordered and cubic mesoporous silica crystals under a moderately acidic condition [Elektronische Daten] [Zhengwei Jin, Xiaodong Wang, Xiuguo Cui] Ordered and cubic mesoporous silica materials were synthesized by using poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) triblock copolymer as template under a moderately acidic condition of 0.5mol/l HCl solution. These mesoporous materials were characterized by Fourier transform (FT) IR spectroscopy, thermo-gravimetric analysis (TGA), X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption measurements. The three-dimensional cage-like microporosity of the prepared mesoporous silica having ordered hexagonal mesoporous structure was evidenced by the well-defined XRD patterns combined with TEM photographs. SEM observation shows a highly regular cubic crystal structure for the prepared mesoporous silica. The size of these crystallites was maintained within the range between 4 and 6μm, which is fairly important for the application to the stationary phase for separation. The nitrogen adsorption-desorption analysis reveals that the prepared mesoporous silica possesses a small pore diameter of 3.68nm, a total surface area of 363.648m2/g, a total pore volume of 0.379cm3/g, and a pore-wall thickness of 6.63nm. These features may lead to higher thermal and hydrothermal stability, excellent microporosity, and good connectivity. The mesoporous silica prepared in this study exhibits potential applications to catalysis, sensoring, and separation. Springer Science+Business Media, LLC, 2006 Jin Zhengwei Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, School of Materials Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China aut Wang Xiaodong Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, School of Materials Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China aut Cui Xiuguo Department of Chemical Engineering and Polymer Science, Yanbian University, 133002, Yanji City, Jilin, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/2(2007-01-01), 465-471 0022-2461 42:2<465 2007 42 10853 https://doi.org/10.1007/s10853-006-1170-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1170-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jin Zhengwei Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, School of Materials Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China aut NATIONALLICENCE 700 1- Wang Xiaodong Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, School of Materials Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China aut NATIONALLICENCE 700 1- Cui Xiuguo Department of Chemical Engineering and Polymer Science, Yanbian University, 133002, Yanji City, Jilin, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/2(2007-01-01), 465-471 0022-2461 42:2<465 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer