Novel aminophosphonate ligand for the preparation of catalytically active silica aerogels with finely dispersed palladium.

Autor:	Sipyagina, Nataliya A., Malkova, Alena N., Straumal, Elena A., Yurkova, Lyudmila L., Baranchikov, Alexander E., Ivanov, Vladimir K., Lermontov, Sergey A.
Zdroj:	Journal of Porous Materials; Apr2023, Vol. 30 Issue 2, p449-457, 9p
Abstrakt:	Silica-based aerogels bearing a novel aminophosphonate-containing substituent were prepared. Pd2+ and Cu2+ ions were introduced into aerogel matrix to form chelated complexes with aminophosphonate moiety. Both complexes securely retain Me2+ after supercritical drying (SCD) in CO2. In silica matrix, Pd complex is reduced to metallic Pd after treatment by gaseous H2 at 120 °C. In lyogel matrix, Pd complex can also be reduced to metallic Pd upon SCD in isopropanol. Pd-containing aerogel showed excellent catalytic activity in the reaction of C=C and C=Cbonds hydrogenation. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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