"Preparation of MCM-41 silica using the cationic surfactant blend" . . "P\u0159\u00EDprava mesopor\u00E9zn\u00ED siliky MCM-41 pomoc\u00ED sm\u011Bsi kationick\u00FDch surfaktant\u016F"@cs . "A series of samples of MCM-41 silica was synthesized using surfactant blends of 1-alkyl-3-methylimidazolium and alkyltrimethylammonium salts or blends of two different 1-alkyl-3-methylimidazolium salts (alkyl denotes octyl or hexadecyl) as structure-directing agents. The precipitation of solid particles from a homogeneous water solution of sodium metasilicate and surfactant blend was achieved by lowering the pH due to the hydrolysis of ethyl acetate added. The molecular sieves were characterized by scanning as well as transmission electron microscopy, X-ray powder diffraction, and nitrogen adsorption using a proper nonlocal density functional theory approach for calculations of the textural parameters. All the prepared silicas were of MCM-41-type; they differ in the integral breadth of the pore size distribution curve and the presence of secondary mesopores."@en . "NL - Nizozemsko" . . . . "247;256" . . "\u0160iklov\u00E1, Helena" . "Adsorption-Journal of the International Adsorption Society" . "443858" . "Zukal, Arno\u0161t" . . "Preparation of MCM-41 silica using the cationic surfactant blend" . . "P\u0159\u00EDprava mesopor\u00E9zn\u00ED siliky MCM-41 pomoc\u00ED sm\u011Bsi kationick\u00FDch surfaktant\u016F"@cs . . "Thommes, M." . . "Preparation of MCM-41 silica using the cationic surfactant blend"@en . "4"^^ . "3"^^ . . "Preparation of MCM-41 silica using the cationic surfactant blend"@en . "mesoporous molecular sieves; Synthesis and characterization; Nitrogen adsorption isotherms"@en . . . . "3-4" . . "[08ADC351334B]" . "RIV/61388955:_____/07:00092686!RIV08-AV0-61388955" . "\u010Cejka, Ji\u0159\u00ED" . "13" . "0929-5607" . . . "A series of samples of MCM-41 silica was synthesized using surfactant blends of 1-alkyl-3-methylimidazolium and alkyltrimethylammonium salts or blends of two different 1-alkyl-3-methylimidazolium salts (alkyl denotes octyl or hexadecyl) as structure-directing agents. The precipitation of solid particles from a homogeneous water solution of sodium metasilicate and surfactant blend was achieved by lowering the pH due to the hydrolysis of ethyl acetate added. The molecular sieves were characterized by scanning as well as transmission electron microscopy, X-ray powder diffraction, and nitrogen adsorption using a proper nonlocal density functional theory approach for calculations of the textural parameters. All the prepared silicas were of MCM-41-type; they differ in the integral breadth of the pore size distribution curve and the presence of secondary mesopores." . . . . "P(GD203/03/H140), P(KAN100400701), R, Z(AV0Z40400503)" . "Serie vzork\u016F siliky MCM-41 byla p\u0159ipravena pomoc\u00ED sm\u011Bs\u00ED 1-alkyl-3-metylimidazoliov\u00E9 soli s alkyltrimethylamoniovou sol\u00ED nebo pomoc\u00ED sm\u011Bs\u00ED dvou r\u016Fzn\u00FDch 1-alkyl-3-metylimidazoliov\u00FDch sol\u00ED, kter\u00E9 p\u016Fsobily jako \u010Dinidla \u0159\u00EDd\u00EDc\u00ED strukturu. (Alkyl ozna\u010Duje oktyl \u010Di hexadecyl.) Precipitace tuh\u00FDch \u010D\u00E1stic z homogenn\u00EDho roztoku metasilik\u00E1tu sodn\u00E9ho a sm\u011Bsi surfaktant\u016F nast\u00E1vala v d\u016Fsledku sn\u00ED\u017Een\u00ED pH, kter\u00E9 bylo vyvol\u00E1no hydrolyzou etylesteru kyseliny octov\u00E9. P\u0159ipraven\u00E1 molekulov\u00E1 s\u00EDta byla charakterizov\u00E1na rastrovac\u00ED a transmisn\u00ED elektronovu mikroskopi\u00ED, difrakc\u00ED Rentgenova z\u00E1\u0159en\u00ED a adsorpc\u00ED dus\u00EDku. Texturn\u00ED parametry byly vypo\u010Dteny z adsorp\u010Dn\u00EDch dat za pou\u017Eit\u00ED statistiko-termodynamick\u00FDch metod. V\u0161echny p\u0159ipraven\u00E9 siliky byly typu MCM-41; navz\u00E1jem se li\u0161ily integr\u00E1ln\u00ED \u0161\u00ED\u0159kou distribuce mesop\u00F3r\u016F a p\u0159\u00EDtomnost\u00ED mesop\u00F3r\u016F sekund\u00E1rn\u00EDch."@cs . . "RIV/61388955:_____/07:00092686" . . "10"^^ .