Salted mesostructures: salt-liquid crystal templating of lithium triflate-oligo(ethylene oxide) surfactant-mesoporous silica nanocomposite films and monoliths

1999 ◽  
Vol 9 (7) ◽  
pp. 1475-1482 ◽  
Author(s):  
Ömer Dag ◽  
Atul Verma ◽  
Geoffrey A. Ozin ◽  
Charles T. Kresge
Keyword(s):  
Liquid Crystal ◽  
Mesoporous Silica ◽  
Ethylene Oxide ◽  
Nanocomposite Films ◽  
Lithium Triflate ◽  
Silica Nanocomposite ◽  
Liquid Crystal Templating

scholarly journals Mechanisms and Intermediates in the True Liquid Crystal Templating Synthesis of Mesoporous Silica Materials

2021 ◽  
Vol 125 (12) ◽  
pp. 3197-3207
Author(s):  
Johanna R. Bruckner ◽  
Jessica Bauhof ◽  
Jacqueline Gebhardt ◽  
Ann-Katrin Beurer ◽  
Yvonne Traa ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Mesoporous Silica ◽  
Silica Materials ◽  
Mesoporous Silica Materials ◽  
Liquid Crystal Templating ◽  
Templating Synthesis

Bioactive mesoporous silica nanocomposite films obtained from native and transglutaminase-crosslinked bitter vetch proteins

2018 ◽  
Vol 82 ◽  
pp. 106-115 ◽  
Author(s):  
Iñigo Fernandez-Bats ◽  
Prospero Di Pierro ◽  
Reynaldo Villalonga-Santana ◽  
Blanca Garcia-Almendarez ◽  
Raffaele Porta
Keyword(s):  
Mesoporous Silica ◽  
Nanocomposite Films ◽  
Bitter Vetch ◽  
Silica Nanocomposite

Preparation of Organized Mesoporous Silica from Sodium Metasilicate Solutions in Alkaline Medium Using Nonionic Surfactants

2003 ◽  
Vol 68 (10) ◽  
pp. 2019-2031 ◽  
Author(s):  
Markéta Zukalová ◽  
Jiří Rathouský ◽  
Arnošt Zukal
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Oxide ◽  
Sodium Metasilicate ◽  
Spherical Particles ◽  
Structure Directing Agent ◽  
Inorganic Species ◽  
Poly Ethylene Oxide ◽  
Acidic Conditions ◽  
Poly Ethylene ◽  
Hydrolysis Of

A new procedure has been developed, which is based on homogeneous precipitation of organized mesoporous silica from an aqueous solution of sodium metasilicate and a nonionic poly(ethylene oxide) surfactant serving as a structure-directing agent. The decrease in pH, which induces the polycondensation of silica, is achieved by hydrolysis of ethyl acetate. Owing to the complexation of Na+ cations by poly(ethylene oxide) segments, assembling of the mesostructure appears to occur under electrostatic control by the S0Na+I- pathway, where S0 and I- are surfactant and inorganic species, respectively. As the complexation of Na+ cations causes extended conformation of poly(ethylene oxide) segments, the pore size and pore volume of organized mesoporous silica increase in comparison with materials prepared under neutral or acidic conditions. The assembling of particles can be fully separated from their solidification, which results in the formation of highly regular spherical particles of mesoporous silica.

scholarly journals Synthesis of Mesostructured Copper Sulfide by Cation Exchange and Liquid-Crystal Templating

2006 ◽  
Vol 18 (6) ◽  
pp. 781-784 ◽  
Author(s):  
C. R. Lubeck ◽  
T. Y.-J. Han ◽  
A. E. Gash ◽  
J. H. Satcher ◽  
F. M. Doyle
Keyword(s):  
Liquid Crystal ◽  
Cation Exchange ◽  
Copper Sulfide ◽  
Liquid Crystal Templating
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