Description du projet
Des vecteurs énergétiques plus efficaces pour une industrie chimique durable
La production chimique représente une grande partie de la valeur ajoutée brute de l’UE. Toutefois, l’industrie chimique consomme énormément d’énergie, 95 % des produits chimiques organiques étant dérivés de pétrole fossile et de gaz naturel. Pour soutenir sa croissance, l’industrie chimique doit remplacer ses matières premières fossiles par des sources renouvelables de carbone, de phosphore et de silicium. Il n’existe actuellement aucun vecteur énergétique efficace pour l’utilisation de ces matières premières oxydées. Le projet ReNewHydrides, financé par l’UE, conçoit des réducteurs recyclables innovants à base de composés de silicium et de bore pour relever les défis catalytiques de la réduction des liaisons C-O, P-O et Si-O et de la valorisation des déchets plastiques, du CO2, du CO, etc. Les travaux du projet ouvriront de nouvelles voies durables pour l’utilisation de matières premières renouvelables.
Objectif
The production of chemicals, plastics, solvents, etc., contributes to 20 % of the Gross Value Added in the EU, where sales have doubled over the last 20 years. Despite this dynamism, the chemical industry is energy intensive and 95 % of organic chemicals derive from fossil oil and natural gas. To sustain the growth of this industry, the replacement of fossil feedstocks with renewable carbon, phosphorus and silicon sources should be encouraged. Nonetheless, such a sourcing shift represents a paradigm shift: while the development of petrochemistry has relied on the selective oxidation of hydrocarbons, the conversion of renewable feedstocks (e.g. CO2, phosphates, silicates or biomass) requires efficient reduction methods and catalysts to overcome their oxidized nature.
Today, no reduction method meets the criteria for a versatile and energy efficient reduction of oxidized feedstocks and the aim of the ReNewHydrides project is to design novel reductants and catalytic reactions to achieve this important aim. At the crossroads of main group element chemistry, organometallic chemistry, electrochemistry and homogenous catalysis, I propose to develop innovative and recyclable reductants based on silicon and boron compounds, and to utilize them to tackle catalytic challenges in the reduction of C–O, P–O and Si–O bonds. The overarching principle is to build a balanced synthetic cycle, where the electrochemical reduction of functionalized and oxidized substrates is ensured by silicon and boron based hydride donors, with a high energy efficiency and selectivity.
This project will foster innovative routes in the utilization of renewable carbon, phosphorus and silicon feedstocks. It is therefore of high risk, but ultimately extremely rewarding. The results will also also open-up new horizons in silicon and boron chemistry and they will finally serve the scientific community involved in the fields of organic and inorganic chemistry, sustainable chemistry and energy storage.
Champ scientifique
- natural scienceschemical sciencesinorganic chemistryorganometallic chemistry
- natural scienceschemical sciencesorganic chemistryhydrocarbons
- engineering and technologyenvironmental engineeringenergy and fuelsfossil energynatural gas
- natural scienceschemical sciencescatalysis
- natural scienceschemical sciencesinorganic chemistrymetalloids
Mots‑clés
Programme(s)
Régime de financement
ERC-COG - Consolidator GrantInstitution d’accueil
75015 PARIS 15
France