Inorganic nanocomposites: synthesis strategies & applications. – (Juliette Blanchard/ LPCNO / Seminar). – 18/12/2024, 16H

Séminaire LPCNO

Juliette Blanchard Laboratoire de Réactivité de Surface, Paris

GP seminar room, INSA, Build. 27, Room 2.20 (2nd floor left)

Abstract
Inorganic composite particles at the nanometre scale are of great potential interest for both catalysis and biomedical applications. However, the preparation of homogeneous inorganic nanocomposite materials remains a challenge at present. Over the last few years, I have developed an original approach for the preparation of such composites, based on the heterocoagulation of the two components. I will present two examples of nanocomposites prepared using this heterocoagulation approach: the first one is zeolite@alumina colloidal nanoparticles that were applied as support for hydroisomerisation catalysts and the second one UCNP@ZnO colloidal nanoparticles (with UCNP a Tm,Yb doped LiYF4 nanoparticle with upconversion properties) that were applied for photocatalysis under NIR light. This approach will be compared to a more “classical” one which is based on the direct growth of one material on pre-existing particles of a second material and the advantages and limitations of both methods will be discussed