Szczegóły publikacji
Opis bibliograficzny
Poly(hydromethylsiloxane)-derived high internal phase emulsion-templated materials (polyHIPEs) containing palladium for catalytic applications / Jan MRÓWKA, Robert Kosydar, Mariusz Gackowski, Jacek Gurgul, Lidia Lityńska-Dobrzyńska, Bartosz HANDKE, Alicja Drelinkiewicz, Magdalena HASIK // Journal of Materials Science ; ISSN 0022-2461. — 2022 — vol. 57 iss. 26, s. 12463–12482. — Bibliogr. s. 12480–12482, Abstr. — Publikacja dostępna online od: 2022-07-01
Autorzy (8)
- AGHMrówka Jan
- Kosydar Robert
- Gackowski Mariusz
- Gurgul Jacek
- Lityńska-Dobrzyńska Lidia
- AGHHandke Bartosz
- Drelinkiewicz Alicja
- AGHHasik Magdalena
Dane bibliometryczne
| ID BaDAP | 141218 |
|---|---|
| Data dodania do BaDAP | 2022-07-27 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10853-022-07414-2 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Materials Science |
Abstract
Cross-linking of poly(hydromethylsiloxane) (PHMS) with 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane (D-4(Vi)) in water-in-oil high internal phase emulsion (HIPE) whose aqueous phase comprises PdCl2 is developed as a new, one-step route for the fabrication of polysiloxane-based, porous HIPE-templated materials (polyHIPEs) containing palladium. It is shown that the microstructure of the systems depends on the amount of D-4(Vi) with respect to PHMS and is also significantly influenced by the presence of PdCl2 in HIPE. PolyHIPEs thus obtained contain metallic Pd nanoparticles (similar to 4-10 nm in size) that strongly interact with the polysiloxane matrix they are dispersed in. The materials catalyse phenylacetylene hydrogenation to styrene yielding this product with fair selectivity. Incorporation of Pd into the pre-formed PHMS-based polyHIPE (the two-step procedure) conducted for comparison results in the material containing nanoclusters of Pd and displaying highly selective hydrogenation of phenylacetylene to styrene, but at a relatively low rate.