2026-04-17T05:41:44Zhttps://recercat.cat/oai/request
oai:recercat.cat:2445/1248202025-12-04T21:44:57Zcom_2072_1057col_2072_478917col_2072_478933
RECERCAT author Nafria Soler, Raquel author Ramírez de la Piscina, Pilar author Homs Martí, Narcís author Morante i Lleonart, Joan Ramon author Cabot i Codina, Andreu author Diaz, Urbano author Corma, Avelino 2018-09-26T07:54:09Z2018-09-26T07:54:09Z2013-09-192018-09-26T07:54:09Z The ability to produce catalytic nanoparticles with controlled properties is key to developing and producing heterogeneous catalysts with optimized activity and selectivity. No less important is to maximize the nanoparticle dispersion over high area supports maintaining their optimized properties. Here we detail a general procedure to produce heterogeneous catalysts containing a large surface area mesoporous support and highly dispersed catalytic nanoparticles with controlled properties. We exemplify the developed method using colloidal gold nanocrystals as the catalytically active phase and titanium oxide as the paradigmatic support. Our synthetic strategy is based on the growth of an inorganic-organic hybrid mesoporous material from the surface of the colloidal nanocrystals. A variety of organic spacers allows tuning the final porosity of the support. The good accessibility of the active catalytic sites in these materials is demonstrated by high CO oxidation conversion values. (c) Nafria Soler, Raquel et al., 2013 info:eu-repo/semantics/openAccess Catàlisi Nanopartícules Porositat Catalysis Nanoparticles Porosity Embedding catalytic nanoparticles inside mesoporous structures with controlled porosity: Au@TiO2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion