• stepwise direct synthesis of aluminosilicate mesoporous

    Stepwise Direct Synthesis of Aluminosilicate Mesoporous

    Aluminosilicate mesoporous materials (AlMS) were synthesized by two different methods. In “stepwise direct synthesis” of AlMS, sodium aluminate was added at the second ageing after the first

  • one-step direct synthesis of mesoporous aluminosilicates al

    One-step direct synthesis of mesoporous aluminosilicates Al

    Ordered mesoporous aluminosilicate Al-SBA-15 materials with cage-like macropores have been synthesized by using micrometer-sized aluminum balls as an Al source, tetraethyl orthosilicate (TEOS) as a silica source, and triblock copolymer Pluronic P123 as a template. The resulting materials were fully characterized by XRD, N2 adsorption, SEM, TEM, ICP-AES, and 27Al MAS-NMR. The products (Al-SBA

  • direct synthesis of mesoporous aluminosilicates

    Direct synthesis of mesoporous aluminosilicates

    Here, we report direct synthesis of amorphous mesoporous aluminosilicate using raw kaolin clay as the Si and Al sources without prior pre-treatment. Silicalite-1 seed was used as structure-directing agent (SDA) to obtain MFI-type framework, while cationic surfactant, CTABr was used as mesoporogen.

  • direct synthesis of acidic aluminosilicate mesoporous

    Direct synthesis of acidic aluminosilicate mesoporous

    @article{osti_462725, title = {Direct synthesis of acidic aluminosilicate mesoporous molecular sieves}, author = {Mokaya, R. and Jones, W.}, abstractNote = {A simple and versatile synthetic route, whereby primary amine surfactants are the template in the assembly of aluminosilicate inorganic species, is used to prepare aluminosilicate mesoporous molecular sieves in which Broensted acidity is

  • synthesis of mesoporous copper aluminosilicate hollow spheres

    Synthesis of Mesoporous Copper Aluminosilicate Hollow Spheres

    Hollow functional metal silicate materials have received the most interest due to their large inner space, permeable and functional shell, lighter density, and better use of material compared to their solid counterparts. While tremendous success has been made in the synthesis of individual metal silicates with uniform morphology, the synthesis of multi-phase hollow silicates has not been

  • sol-gel synthesis of mesoporous aluminosilicates with a

    Sol-gel synthesis of mesoporous aluminosilicates with a

    It has been found that the implementation of the sol-gel synthesis initially in the acidic medium followed by the alkaline one allowed producing the mesoporous aluminosilicate with the specific surface area SBET of 660 m2 g − 1, the mesopore volume V of 0.74 cm3 g − 1, and the pore size distribution within the range of 2–5 nm. The high

  • direct synthesis of acidic aluminosilicate mesoporous

    Direct synthesis of acidic aluminosilicate mesoporous

    @article{osti_462725, title = {Direct synthesis of acidic aluminosilicate mesoporous molecular sieves}, author = {Mokaya, R. and Jones, W.}, abstractNote = {A simple and versatile synthetic route, whereby primary amine surfactants are the template in the assembly of aluminosilicate inorganic species, is used to prepare aluminosilicate mesoporous molecular sieves in which Broensted acidity is

  • synthesis of mesoporous copper aluminosilicate hollow spheres

    Synthesis of Mesoporous Copper Aluminosilicate Hollow Spheres

    Synthesis of Mesoporous Copper Aluminosilicate Hollow Spheres for Oxidation Reactions. Kosari M(1)(2), Seayad AM(2), Xi S(2), Kozlov SM(1), Borgna A(2), Zeng HC(1). Author information: (1)Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260.

  • iron-containing mesoporous aluminosilicate catalyzed direct

    Iron-containing mesoporous aluminosilicate catalyzed direct

    Synthesis of the catalyst (Fe-Al-MCM-41): As described in our previous work , iron was incorporated into the mesoporous aluminosilicate (Al-MCM-41) by the ion-exchange method. A 0.5 g amount of Al-MCM-41 was added to 100 mL 0.001 M methanolic solution of FeCl 3 ·6H 2 O, and the mixture was stirred vigorously for 12 h.

  • direct synthesis of mesoporous aluminosilicate using natural

    Direct synthesis of mesoporous aluminosilicate using natural

    We have recently presented the direct synthesis of mesoporous aluminosilicate Al-MCM-41 [16, 17]and SBA-15[18]using natural clay from low-grade potash ores of a Salt Lake in Qinghai. In this paper

  • effect of aluminum incorporation into mesoporous

    Effect of Aluminum Incorporation into Mesoporous

    2.2. Synthesis of Mesoporous Silica Matrices. The detailed synthesis and characterization of MCM-41 and SBA-15 supports and metoprolol-loaded materials were reported in our previous publications [31,36]. In brief, MCM-41 was obtained by adding TEOS to an aqueous solution containing 25% ammonia and [C.sub.14]TAB.

  • iron-containing mesoporous aluminosilicate catalyzed direct

    Iron-containing mesoporous aluminosilicate catalyzed direct

    Iron-containing mesoporous aluminosilicate catalyzed direct alkenylation of phenols: Facile synthesis of 1,1-diarylalkenes Satyajit€Haldar and€Subratanath€Koner* Full Research Paper Open Access Address: Department of Chemistry, Jadavpur University, Kolkata 700032, India Email: Subratanath€Koner*€- snkoner@chemistry.jdvu.ac.in