- Directeur de recherche CNRS - Equipe MediaCat
- Directeur adjoint de l'IC2MP
- CNRS
- francois.jerome@univ-poitiers.fr
- +33 (0)5 49 45 40 52
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The introduction of renewable carbon (biomass, CO2, waste) in the chemical industry raises scientific and technological challenges, requiring chemists to re-invent chemistry. Although much efforts have been done so far, the emergence of biobased chemicals in our society still remain difficult due to scientific, environmental and societal hurdles. Emergence of biobased chemicals on the market is mostly driven by their intrinsic performances. In this context, our strategy consists in taking advantage of the chemical functionalities existing in biomass waste in order to bring novel properties that are hardly obtainable from fossil feedstocks. In all these chemical transformations, catalysis is placed at the heart of our strategy, in particular with the aim of finely controlling or tuning the reaction selectivity, while improving the space time yield of catalytic reactors. The catalytic control of the reaction selectivity is scientifically difficult to achieve with biobased molecules, essentially due to their polyfunctionality. Usually, to overcome this problem, most of these biobased catalytic routes are explored under diluted conditions (< 5 wt% in water) to limit the formation of tar-like materials which rapidly deactivate solid catalysts. Unfortunately, under diluted conditions, low space time yields are obtained, hampering the implementation of these catalytic reactions on a larger scale. Being able to catalytically convert, and selectively, concentrated feeds of biobased molecules is an important but very difficult scientific task, which is addressed in our researches.
In this context, we are developing two different strategies: