General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRF-24-0379
Direction
DRF
Thesis topic details
Category
Condensed Matter Physics, chemistry, nanosciences
Thesis topics
Catalytic cleavage of C-O and C-N bonds applied to the transformation or reductive depolymerization of waste plastics
Contract
Thèse
Job description
The recycling and chemical recovery of plastics are necessary and crucialsteps to accelerate the transition to a circular economy and reduce the pollution associated with these materials.
The aim of this project is to develop catalytic systems for depolymerizing oxygenated and nitrogenous plastics into their monomers or derivatives (alcohols, amines, halides or even hydrocarbons). These methods, which enable the carbonaceous matter in polymers to be recovered under mild conditions in the form of chemical products useful to the chemical industry, are still underdeveloped and will, in the future, be virtuous processing routes for recycling certain plastics.
The aim of this doctoral project is to develop and use new metal molecular complexes (aluminium, zirconium, rare earths, etc.) and organic catalysts (boron-based), which
- are simple, inexpensive, recyclable and more selective than current catalysts (composed of iridium, ruthenium and boron), to depolymerize different types of plastics (polyesters, polycarbonates, polyurethanes and polyamides),
- allow, in the case of reductive catalysis, the use of hydrosilanes and hydroboranes, as well as the use of new reducing agents acting by transfer hydrogenation routes.
Finally, we will also consider the use of organic anhydrides to transform plastics into reactive organic compounds useful in organic chemistry.
University / doctoral school
Sciences Chimiques: Molécules, Matériaux, Instrumentation et Biosystèmes (2MIB)
Paris-Saclay
Thesis topic location
Site
Saclay
Requester
Position start date
01/10/2024
Person to be contacted by the applicant
Berthet Jean-Claude jean-claude.berthet@cea.fr
CEA
DRF/IRAMIS/NIMBE/LCMCE
IRAMIS/NIMBE/LCMCE
Bât 125, CEA Saclay
91191 Gif-sur-Yvette Cedex
01 69 08 60 42
Tutor / Responsible thesis director
Berthet Jean-Claude jean-claude.berthet@cea.fr
CEA
DRF/IRAMIS/NIMBE/LCMCE
IRAMIS/NIMBE/LCMCE
Bât 125, CEA Saclay
91191 Gif-sur-Yvette Cedex
01 69 08 60 42
En savoir plus
https://iramis.cea.fr/Pisp/thibault.cantat/JeanClaude_Berthet.php
https://iramis.cea.fr/Pisp/thibault.cantat/research.php
https://iramis.cea.fr/nimbe/LCMCE/