|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Obtaining of highly-active catalysts of unsaturated compounds hydrogenation by using supercritical carbon dioxideстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 21 октября 2018 г.
- Авторы: Parenago O.P., Timashev P.S., Karakhanov E.A., Maximov A.L., Lazhko A.E., Zolotukhina A.V., Bagratashvili V.N.
- Журнал: Journal of Supercritical Fluids
- Том: 140
- Год издания: 2018
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 387
- Последняя страница: 393
- DOI: 10.1016/j.supflu.2018.07.010
- Аннотация: Polymer frameworks have been for the first time impregnated with rhodium and palladium compounds in a supercritical carbon dioxide medium. The polymeric carriers were the mesoporous phenol-formaldehyde resin and cross-linked dendrimer networks, based on poly(propylene imine) and poly(amido amine) dendrimers. The metal compounds were rhodium acetylacetonate and palladium carboxylates including their fluoro-substituted derivatives and palladium hexafluoroacetylacetonate. Using the IR-spectroscopy method, we have shown that the metal content in the polymers was in the range of 0.3–2.0 wt.% depending on the polymer nature, cross-linking agent type and cross-linking degree. We have obtained the samples of polymer supports with nanosized metal particles through hydrogen reduction of immobilized rhodium and palladium compounds at P(H2) = 6–10 MPa, T = 60 °C, 4 h time. The average rhodium particle size was 1–2 nm. It has been shown that the obtained nanocomposites were extremely active catalysts for hydrogenation of unsaturated hydrocarbons.
- Добавил в систему: Караханов Эдуард Аветисович