Palladium catalysts deposited on silica materials: Comparison of catalysts based on mesoporous and amorphous supports in Heck reaction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10051893" target="_blank" >RIV/00216208:11310/10:10051893 - isvavai.cz</a>

Alternative codes found

RIV/61388955:_____/10:00352624

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Palladium catalysts deposited on silica materials: Comparison of catalysts based on mesoporous and amorphous supports in Heck reaction

Original language description

Palladium catalysts supported on different silica-based materials were investigated in the Heck reaction of n-butyl acrylate with bromobenzene at 160 degrees C. The main objective was to understand the role of mesopores in the catalysts supported on SBA-15 functionalised with (CH2)(3)NH(CH2)(2)NEt2 donor groups at the surface in comparison with the analogous silica gel-based catalysts. The results obtained evidence a crucial influence of the ratio of the anchoring groups to palladium (N/Pd): a higher excess of coordinating groups in the catalysts results in a higher catalytic activity, probably because such supports aid the deposition of the metal onto the support and, simultaneously, prevent aggregation of the 'active' metal species at high reaction temperatures. This is very important as the reactions with deposited palladium catalysts typically take place in solution with the metal first leaching out from the support and then returning back to the solid matrix.

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

<a href="/en/project/GA104%2F09%2F0561" target="_blank" >GA104/09/0561: Supported nanoparticle catalysts for C-C bond forming reactions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

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

Name of the periodical

Journal of molecular catalysis a-chemical

ISSN

1381-1169

e-ISSN

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Volume of the periodical

329

Issue of the periodical within the volume

1-2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

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UT code for WoS article

000281321000003

EID of the result in the Scopus database

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