All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Synthesis and characterization of novel zeolites MCM-58 and MCM-68

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F05%3A00021956" target="_blank" >RIV/61388955:_____/05:00021956 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Synthesis and characterization of novel zeolites MCM-58 and MCM-68

  • Original language description

    Nanostacked zeolite having MFI-structure contained titanium metal ions on its framework, has been prepared via microwave irradiation. Nanofabrication of titanium containing MFI zeolitic materials under microwave irradiation was successfully implemented by the adhesion of crystallites through the condensation of hydroxyl groups on surface via selective adsorption of microwave energy onto high dielectric metal species including Ti species as a nanoglue. This microwave technique gave births of both the uniform size of hockey puck shaped crystals and the fibrous stacked morphology of MFI crystals. This material have superior adsorption selectivity of linear hydrocarbons such as n-hexane, n-octane and both increased of activity and selectivity in the epoxidation of styrene into styrene epoxide.

  • Czech name

    Syntéza a charakterizace nových typů zeolitů MCM-58 a MCM-68

  • Czech description

    Byla studována syntéza a katalytické vlastnosti zeolitů MCM-58 a MCM-68. Zeolit MCM-58 byl syntetizován s organickou molekulou N-benzylquinuclidin bromid (BQ), která byla strukturně řídícím činidlem (SDA). Zeolit byl připraven v širokém rozmezí poměrů vgelu nSi/nAl = 20 - 40 a nSi/nFe = 20 - 40. Zeolit MCM-68 byl syntetizován s N,N,N?,N?-tetraethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidiniem diiodidem jako strukturně řídícím činidlem v rozsahu počátečních poměrů nSi/nAl od 9 do 20. Katalytické vlastnosti zeolitů byly testovány v alkylaci toluenu isopropyl alkoholem. Relativně vysoké množství n-propyltoluenů vznikalo na zeolitech Al-MCM-58 a Al-MCM-68. Fe-MCM-58 vykazoval téměř 100 % selektivitu na cymeny.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/KJB4040402" target="_blank" >KJB4040402: Tailoring the zeolite properties for catalytic applications</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Studies in Surface Science and Catalysis

  • ISBN

    0-444-51670-0

  • ISSN

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    59-66

  • Publisher name

    Elsevier

  • Place of publication

    Amsterdam

  • Event location

    Prague

  • Event date

    Aug 23, 2005

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article