Biocarbones (Biochars) : carbonisation, graphitisation, caractérisation multi-échelle et performances en matière de stockage d'énergie // Biocarbons (Biochars) carbonisation, graphitisation, multiscale characterisation and energy storage performances

This work is part of an ERC (European Research Council) Advanced Grant project. The ERC is a European funding organisation that supports ambitious and innovative research projects through competitive grants, as part of the EU's Horizon Europe programme.
The project aims at the synthesis of biocarbon-based composites for energy storage.
An ongoing study is focused on the selection of biomass feedstocks, their characterisation and on pyrolysis to produce biocarbon composites. As part of this ERC work and in parallel with other ongoing studies in our research group, this PhD work will be dedicated to the synthesis (standard and concentrated solar processes) of ordered biocarbon using carbonisation and graphitisation processes, and they application in energy storage. Multiscale structure (micro, nano and atomic) assessment will be performed using various standard chemical and physical techniques including particle size distribution and shape, elemental and chemical composition, specific surface area as well as thermochemical and thermomechanical parameters from thermogravimetric and differential scanning calorimetry (TGA-DSC), and thermomechanical analysis (TMA).
Particular attention will be paid to its multi-scale (micro, nano and atomic) chemical, mechanical and structural transformations. It is expected to probe the changes in biocarbon nanostructure, aromaticity and/or degree of aromatic condensation, crystalline graphitic domains and investigate how this evolution is impacted by the inclusion of inorganic elements. Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and X-Ray photon spectroscopy among other complementary techniques will be used to this end. The study should investigate the relation between carbon structure, thermomechanical stability, and conductivity of the biocarbon and the impact of these properties on storage performances. These properties and performances will be correlated with the feedstocks, production process and application in energy storage. A sustainability assessment approach will be developed for the biocarbon value chain.
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This work is part of an ERC (European Research Council) Advanced Grant project. The ERC is a European funding organisation that supports ambitious and innovative research projects through competitive grants, as part of the EU's Horizon Europe programme.
The project aims at the synthesis of biocarbon-based composites for energy storage.
An ongoing study is focused on the selection of biomass feedstocks, their characterisation and on pyrolysis to produce biocarbon composites. As part of this ERC work and in parallel with other ongoing studies in our research group, this PhD work will be dedicated to the synthesis (standard and concentrated solar processes) of ordered biocarbon using carbonisation and graphitisation processes, and they application in energy storage. Multiscale structure (micro, nano and atomic) assessment will be performed using various standard chemical and physical techniques including particle size distribution and shape, elemental and chemical composition, specific surface area as well as thermochemical and thermomechanical parameters from thermogravimetric and differential scanning calorimetry (TGA-DSC), and thermomechanical analysis (TMA).
Particular attention will be paid to its multi-scale (micro, nano and atomic) chemical, mechanical and structural transformations. It is expected to probe the changes in biocarbon nanostructure, aromaticity and/or degree of aromatic condensation, crystalline graphitic domains and investigate how this evolution is impacted by the inclusion of inorganic elements. Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and X-Ray photon spectroscopy among other complementary techniques will be used to this end. The study should investigate the relation between carbon structure, thermomechanical stability, and conductivity of the biocarbon and the impact of these properties on storage performances. These properties and performances will be correlated with the feedstocks, production process and application in energy storage. A sustainability assessment approach will be developed for the biocarbon value chain.
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Début de la thèse : 01/09/2025

Programmes de l'Union Européenne de financement de la recherche (ERC, ERASMUS)

IMT Mines Albi

468 MEGEP - Mécanique, Energétique, Génie civil, Procédés

Le candidat doit être titulaire d'une maîtrise en génie chimique ou en génie des matériaux, ou en science des matériaux, ou en physique de l'état solide, avec une expérience initiale sur la caractérisation des solides. Une première expérience dans certaines des techniques suivantes, DRX, XPS, ATG-DSC, N2 sorption, MEB- EDS, MET-HR, spectroscopie Raman, synchrotron sera très appréciée.
It is expected that the candidate holds a Master degree in chemical, or material engineering, or in material science, or solid-state physics with initial background on solid characterisation. Initial experience in some of the following techniques, XRD, XPS, TGA-DSC, N2 sorption, SEM- EDS, HR-TEM, Raman spectroscopy, synchrotron will be much appreciated.