Preparation of Nanosized Micro/Mesoporous Composites via Simultaneous Synthesis of Beta/MCM-48 Phases.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030132" target="_blank" >RIV/61388955:_____/03:54030132 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Preparation of Nanosized Micro/Mesoporous Composites via Simultaneous Synthesis of Beta/MCM-48 Phases.

Original language description

Micro/mesoporous composites with nanoscale domains were prepared via simultaneous hydrothermal (HT) treatment of a MCM-48 precursor solution and a colloidal solution containing X-ray amorphous aluminosilicate precursors. Regardless of the composite materials, the method involved two steps: i) preparation of two separate precursor solutions, one for nanosized aluminosilicate seeds via hydrothermal treatment of colloidal precursors resulting in zeolite Beta (100 .DEG.C, 3-7 days), the other one being freshly prepared precursor for synthesis of MCM-48 mesoporous materials, and ii) HT treatment of a mixture containing the two solutions at 100 .DEG.C for various crystallization times. The composite materials were obtained by optimizing the silica source used for the preparation of the two precursor solutions, the Si/Al ratios, and the amount of the surfactant used for MCM-48 mesophase. Micro/mesoporous composites were characterized by various techniques and compared with the pure MCM-48.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microporous and Mesoporous Materials

ISSN

1387-1811

e-ISSN

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Volume of the periodical

64

Issue of the periodical within the volume

N/A

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

165-174

UT code for WoS article

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EID of the result in the Scopus database

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