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-24-0401
Direction
DRF
Thesis topic details
Category
Condensed Matter Physics, chemistry, nanosciences
Thesis topics
Effect of substitution on the ferroelectric and photocatalytic properties of Barium Titanate nanoparticles
Contract
Thèse
Job description
As part of the energy transition, the production of hydrogen from solar energy appears to be an extremely promising means of storing and then producing energy. To develop on a large scale, water photoelectrolysis requires materials with high catalytic efficiency. Among the candidates considered, materials derived from barium titanates appear promising because their ferro- and piezoelectric properties could increase their photocatalytic effect. Therefore, we propose to synthesize BaTiO3 nanoparticles by flame spray pyrolysis and to make substitutions on Ba and O in order to study the effect of these modifications on the ferroelectric properties of the material. The addition of noble metal inclusions to the surface of the particles, likely to improve catalysis, will also be addressed. Finally, photocatalysis and piezocatalysis tests will make it possible to establish the links between ferroelectric and catalytic phenomena in this family of materials. This subject will be carried out in collaboration between the LEEL of the CEA and the SPMS of Centrale – Supelec.
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
LECONTE Yann yann.leconte@cea.fr
CEA
DRF/IRAMIS/NIMBE/LEEL
Bât.637
CEA Saclay
91191 Gif-sur-Yvette
0169086496
Tutor / Responsible thesis director
LECONTE Yann yann.leconte@cea.fr
CEA
DRF/IRAMIS/NIMBE/LEEL
Bât.637
CEA Saclay
91191 Gif-sur-Yvette
0169086496
En savoir plus
https://iramis.cea.fr/nimbe/Phocea/Membres/Annuaire/index.php?uid=leconte
https://iramis.cea.fr/nimbe/leel/