Macroporous silica and titania obtained using poly[styrene-co-(2-hydroxyethyl methacrylate)] as template

Preparation of thin layer materials with macroporous microstructure for SOFC applications

“…The specific surface areas determined by nitrogen sorption range from 11.6 to 38.2 m 2 /g, which is in agreement with several other macroporous oxides [18][19][20][21][22]. The lowest specific surface area corresponds to the LMO sample with the largest crystallite size $60 nm, whereas the largest surface area corresponds to CGO $38.2 m 2 /g with the smallest crystallites, i.e.…”

“…The template is then removed by calcination, yielding threedimensionally (3D) ordered macroporous materials. Nevertheless, most of the materials prepared by alkoxide sol-gel are single oxides, such as: SiO 2, TiO 2 , Al 2 O 3 ; and only some mixed oxides have been reported using this route [20]. Moreover, the alkoxide sol-gel method is not the best choice to prepare mixed metal oxides due to the difficulty and high cost to obtain alkoxide precursors when they are not commercially available.…”

“…Porous materials with high relative surface area can also be obtained by using a colloidal crystal templating method [18][19][20]. In this case, a colloidal crystal template is prepared via a regular arrangement of organic microspheres (e.g.…”

Characterization of latex particle arrays by gas adsorption

“…Polystyrene (PS) was prepared by polymerization of styrene, and 2-hydroxyethylmethacrylate, acrylic acid, or methacrylic acid was used as copolymer to obtain poly[styrene-co-(2-hydroxyethylmethacrylate)] (PS-HEMA), poly[styrene-co-acrylic acid] (PS-AA), and poly[styrene-co-methacrylic acid] (PS-MAA) respectively. The reaction products were filtered and dialyzed for 4 weeks against water [15].…”

Effect of embedded metal compound on porosity of silica colloids prepared by spray reaction of silicon tetrachloride

“…Macroporous silicas from soluble silicate and alkoxysilane have also been prepared by many researchers: mesoporousmacroporous silica using chitosan as a template [11], macroporous silica and titania using latex arrays as templates [12], macroporous silica packed with high efficiency and narrow size distribution by monodispersion polymerization [13], and silica gel and silica-zirconia including macropores by the phase separation technique [14,15]. However, it is hard to find articles about macroporous silica derived from silicon tetrachloride.…”