Emeline CHARON

Research fields

I am a CEA research scientist in nanosciences specialized in carbon materials: from graphene and carbon nanotubes (CNT) up to interstellar carbon and carbon in meteorites.

My research fields are:

• Physicochemistry of materials
• Nanosciences and nanotechnologies
• Design, development and optimization of CVD process
• Carbon materials
• Synthesis and characterization of carbon nanotubes

Since my PhD, I have been participating at the same time in fundamental research and in R&D. I have acquired robust skills in physico-chemistry (particularly in physico-chemistry of carbon materials and nanomaterials), and in various general techniques of materials synthesis and characterization (CCVD, furnace with controlled atmosphere, scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Raman spectroscopy).

During my PhD and my last post-doc at CSNSM, I studied multiscale organization of carbon included in meteorites or Antarctic micrometeorites with HRTEM, Raman spectroscopy, STXM/XANES and secondary ion mass spectrometry.

During my two postdoc at CEA Saclay, I studied synthesis of carbon nanotubes by catalytic chemical vapor deposition assisted by aerosol. My first postdoc consisted of reducing iron segments in CNT central core while my second postdoc consisted in development of supercapacitor electrodes made using CNT. I characterized CNT by SEM, HRTEM, spectroscopy Raman and TGA.

Currently, I perform experimental research in the field of synthesis and characterization of carbon nanotubes. My main proposal is about synthesis and study of CNT and graphene growth mechanisms at low temperature.

Research projects

• EtInSEL: Etude in situ de la croissance des nanotubes de carbone verticalement alignés par MET à l’échelle locale (2022-2024). Collaboration avec l’équipe SEEDs du C2N. Financement CNRS MITI
• CaNInS: Croissance et suivi in-situ de nanotubes de carbone verticalement alignés par MET (2022-2024). Collaboration avec l’équipe SEEDs du C2N. Financement Labex NanoSaclay.
• LabCom LACTIF: responsable scientifique de la partie Graphène.

Research supervision

• PhD thesis of Adrien Boissenin (2022 – 2025) with CNES and CMP Composites
• PhD thesis of Guillaume Donadey (2023 – 2026) with CEA – LITEN
• PhD thesis of Sylvain Gigot (2023 – 2026) with CEA NIMBE LCMCE
• Postdoc of Edgar Gonzalez-Yanez (2023 – 2025) with CEA NIMBE LCMCE
• Master’s internship of Dorian Marty (Fev – Juil 2024) with C2N

Research experience

CEA RESEARCH SCIENTIST
CEA, NIMBE LEDNA, Saclay – France
Since December 2017

RESEARCH SCIENTIST
CSNSM, Université Paris Saclay, Orsay – France          1 Year
September 2016 – November 2017
« Multiscale study of ultra-carbonaceous Antarctic micrometeorites (UCAMM) »

POST-DOC
CEA, NIMBE LEDNA, Saclay – France              1 Year
September 2015 – August 2016
« Développement de nano-composites associant nanotubes de carbone alignés et polymères conducteurs ou oxydes métalliques pour le stockage de l’énergie »

POST-DOC
CEA, NIMBE LEDNA, Saclay – France              2 Years
CEA, LITEN LSN, Grenoble – France
September 2012 – August 2014
« Study of carbon nanotubes central core »

TEACHING AND RESEARCH ASSISTANT
LGE, Université Paris-Est Marne-la-Vallée, Champs-sur-Marne – France    1 Year
October 2011 – August 2012
« Study of interaction between Pt, Au, Pd and Ru microparticles and silicated minerals at high temperature and pressure »

PhD in EARTH SCIENCE
Laboratoire de Géologie, Ecole Normale Supérieure, Paris – France    4 Years
CSNSM, Université Paris Sud, Orsay – France 
September 2008 – July 2012
« Study of differentiated meteorite formation by multiscale study of carbon phases. Study of carbon/iron interactions at high temperature: evidence of carbonization and graphitization phenomenon »

Education

PhD in EARTH SCIENCE
Laboratoire de Géologie, Ecole Normale Supérieure, Paris – France    4 Years
CSNSM, Université Paris Sud, Orsay – France 
September 2008 – July 2012

MASTER DEGREE in GEOMATERIALS and ENVIRONMENT
Université Paris-Est Marne La Vallée (UPEM), Champs sur Marne – France                2 Years
2006 – 2008

BACHELOR DEGREE in MATERIALS SCIENCE speciality Chemistry and Applications
Université Paris-Est Marne La Vallée (UPEM), Champs sur Marne – France                4 Years
2002 – 2006

Bibliometric data

Since 2008, date when I started my PhD, I have co-authored 18 articles in peer-reviewed international journals and 3 patents. I have two manuscripts in preparation. Scopus indicates 352 citations, h-index 10.

Journal publications	18	3 first Author
	+2	In preparation
Pending Patent	3
h-Index	11
Total external citation	482

Publications

1. Guillot J., Roussière B., Jardin P., Charon E., Forestier-Colleoni U., Lafourcade R., Mayne-L’Hermite M., Borg E., Bosquet V., Brisset F., Dong W., Jourdain S., Lebois M., Thisse D., Extraction of diffusion coefficients from the study of Rb release in different carbon catchers. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 526 (2022). DOI: 10.1016/j.nimb.2022.06.005

2. Combrisson A., Charon E., Pinault M., Reynaud C., Mayne-L’Hermite M., Critical Role of the Acetylene Content and Fe/C Ratio on the Thickness and Density of Vertically Aligned Carbon Nanotubes Grown at Low Temperature by a One-Step Catalytic Chemical Vapor Deposition Process. Nanomaterials 12 (2022). DOI: 10.3390/nano12142338

3. Perez H., Frégnaux M., Charon E., Etcheverry A., Sublemontier O., Improving the Activity of Fe/C/N ORR Electrocatalyst Using Double Ammonia Promoted CO₂ Laser Pyrolysis. C Journal of Carbon research 6 (2020). DOI: 10.3390/c6040063

4. Charon E., Pinault M., Mayne-L’Hermite M., Reynaud C., One-step synthesis of highly pure and well-crystallized vertically aligned carbon nanotubes. Carbon 173 (2021), P.1-11. DOI: 10.1016/j.carbon.2020.10.056

5. Dartois E., Charon E., Engrand C., Pino T., Sandt C., Mechanochemical synthesis of aromatic infrared band carriers, Astronomy & Astrophysics 637 (2020), A82. DOI: 10.1051/0004-6361/202037725

6. Fruet G., Courtin S., Heine M., Jenkins D.G., Adsley P., Beck C., Brown A., Canavan R., Catford W., Charon E., Curien D., Della Negra S., Duprat J., Hammache F., Lesrel J., Lotey G., Meyer A., Montanari D., Morris L., Moukaddam M., Nippert J., , Podolyák Zs., Regan P.H., Ribaud I., Richer M., Rudigier M., Shearman R., de Séréville N., Stodel C., Advances in the Direct Study of Carbon Burning in Massive Stars. Physical Review Letters 124 (2020). DOI: 10.1103/PhysRevLett.124.192701

7. Barkach T.Id, Mahajan T., Chabot M., Béroff K., Aguirre N.F., Diaz-Tendero S., Launoy T., Le Padellec A., Perrot L., Bonnin M., Le K.C., Geslin F., Desereville N., Hammache F., Jallat A., Meyer A., Charon E., Pino T., Hamelin T., Wakelam V., Semiempirical breakdown curves of C2N(+) and C3N(+) molecules ; application to products branching ratios predictions of physical and chemical processes involving these adducts, Molecular Astrophysics Journal 12 (2018). DOI: 10.1016/j.molap.2018.06.003

8. Dartois E., Engrand C., Duprat J., Godard M., Charon E., Delauche L., Sandt C., Borondics F., Dome C Ultracarbonaceous Antarctic Micrometeorites Infrared and Raman fingerprints. Astronomy & Astrophysics 609 (2018), A65. DOI: 10.1051/0004-6361/201731322

9. Landry M., Pinault M., Tchankouo S., Charon E., Ridoux A., Boczkowski J., Mayne-L’Hermite M., Lanone S., Early signs of multi-walled carbon nanotubes degradation in macrophages, via an intracellular pH-dependent biological mechanism; importance of length and functionalization. Particle and Fibre Toxicology (2016) 13:61. DOI: 10.1186/s12989-016-0175-z

10. Malavergne V., Charon E., Jones J., Cordier P., Righter K., Deldicque D., Hennet L., The formation of nuggets of highly siderophile elements in quenched silicate melts at high temperatures: before or during the silicate quench? Earth and Planetary Science Letters 434 (2016), p.197-207. DOI: 10.1016/j.epsl.2015.11.037

11. Rouzaud J.N., Deldicque D., Charon E., Pageot J., Carbons at the heart of questions on energy and environment: A nanostructural approach. Comptes Rendus Geoscience (2015), vol. 347, Issue 3, p.124-133. DOI: 10.1016/j.crte.2015.04.004

12. Charon E., Aléon J., Rouzaud J. N., Impact delivery of organic matter on the acapulcoite-lodranite parent-body deduced from C, N isotopes and nanostructures of carbon phases in Acapulco and Lodran. Geochemica et Cosmochemica Acta 142 (2014), p.224-239. DOI: 10.1016/j.gca.2014.07.009

13. Malavergne V., Cordier P., Righter K., Brunet F., Zanda B., Addad A., Smith T., Bureau H., Surblé S., Raepsaet C., Charon E., Hewins R.H., How Mercury can be the most reduced terrestrial planet and still store iron in its mantle. Earth and Planetary Science Letters 394 (2014), p.186-197. DOI: 10.1016/j.epsl.2014.03.028

14. Charon E., Rouzaud J. N., Aléon J., Graphitization at low temperatures (600-1200°C) in presence of iron – Planetological implications. Carbon 66 (2014), p.178-190. DOI: 10.1016/j.carbon.2013.08.056

15. Avril C., Malavergne V., Caracas R., Zanda B., Reynard B., Charon E., Brunet F., Borensztajn S., Pont S., Tarrida M., Guyot F., Raman spectroscopic properties and Raman identification of CaS-MgS-MnS-FeS-Cr2S3 sulfides. Meteoritics & Planetary Science 48 (2013), issue 8, p.1415-1426. DOI: 10.1111/maps.12145

16. Carpentier Y., Féraud G., Dartois E., Brunetto R., Charon E., Cao A.T., d’Hendecourt L., Bréchignac P., Rouzaud J.N., Pino T., Nanostructuration of carbonaceous dust as seen through the positions of the 6.2 and 7.7 μm AIBs. Astronomy & Astrophysics 548 (2012), A40, p.14. DOI: 10.1051/0004-6361/201118700

17. Remusat L., Rouzaud J.N., Charon E., Le Guillou C., Guan Y., Eiler J., D-depleted organic matter and graphite in the Abee enstatite chondrite. Geochimica et Cosmochemica Acta 96 (2012), p.319-335. DOI: 10.1016/j.gca.2012.07.031

18. Ammar M.R., Charon E., Rouzaud J.N., Aléon J., Guimbretière G., Simon P., On a reliable structural characterization of polished carbons in meteorites by Raman microspectroscopy, Spectroscopy Letters 44 (2011), Issue 7-8, p.535-538. DOI: 10.1080/00387010.2011.610417

Patents

1. Pibaleau B., Charon E., Pinault M., Mayne L’Hermite M., Ghamouss F., Tran-Van F. (2019) Procédé de préparation d’une électrode comprenant un support, des nanotubes de carbone alignés et un oxyde métallique déposé par voie oxydante, ladite électrode et ses utilisations, WO2019008299A1.

2. Pibaleau B., Charon E., Pinault M., Mayne L’Hermite M., Ghamouss F., Tran-Van F. (2019) Procédé de préparation d’une électrode comprenant un support, des nanotubes de carbone alignés et un oxyde métallique déposé par voie réductrice, ladite électrode et ses utilisations, WO 2019008297A1.

3. Boulanger P., Mayne L’Hermite M., Pinault M., Charon E. Reynaud C. (2014) Procédé de fabrication en continu de nanostructures alignées sur un support et dispositif associé, WO2015071408.

Journal reviews

• Journal reviewer: Carbon.

Teaching activity

TEMPORY LECTURER
LGE, Université Paris-Est Marne-la-Vallée, Champs-sur-Marne – France    since 2 Years
Since 2016
Presentation in the lesson « Discovery of the business world » (L2, licence physique).

TEACHING AND RESEARCH ASSISTANT
LGE, Université Paris-Est Marne-la-Vallée, Champs-sur-Marne – France    1 Year
October 2011 – August 2012
96h of teaching: lessons/tutorial of Earth sciences (L3), electromagnetism lab work (L2), thermodynamics tutorial and lab work (L1 et L3) and tutorial of geometric optics (L1).

COURSES DURING PhD
Département des Géosciences, Ecole Normale Supérieure, Paris – France    3 Years
October 2008 – July 2011
192h of teaching: informatics lab work (L3), tutorial of numeric methods (L3), thermodynamics tutorial (L3), mineralogy tutorial and lab work (L3), geology tutorial (L1) and field training in Cotentin.

Miscellaneous

Collaborations:

• Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI), Université de CergyPontoise.
• Physicochimie des Matériaux et Electrolytes pour l’énergie (PCM2E), Université de Tours.
• Nawatechnologies.
• Institut des Sciences Moléculaires d’Orsay (ISMO), Université ParisSaclay.
• Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université ParisSaclay.

Equipment supervisor:

• Supervisor of Raman spectrometer Horiba XploRA PLUS.
• Co-supervisor of scanning electron microscope Carl Zeiss Ultra55.
• Co-supervisor of thermogravimetric analyses (1 ATG/DSC Netzsch STA449C, 1 ATG TA discovery 55 et 1 ATG Setaram TG92).

Organizational experience:

• 2024: G30 members of SFEC
• 2014: Post-Doc student representative at AERES committee in CEA (2014).
• 2009 – 2011: PhD student representative at doctoral school MIPEGE, Université Paris Sud XI.
• 2009 – 2011: PhD student representative at the laboratory council (Laboratoire de Géologie, ENS, Paris).

Popularization of science

• 2023 : Participation aux rencontres DEFI
• 2008, 2009 et 2017 : “Fête de la Science” in CSNSM, accompagnying of the school in the various stands and/or animation of the antarctic micrometeorites and meteorites stand.
• 2009 : “Faites de la Science”, stand animation dedicated to planets and meteorites formation.
• 2009 : “100h de l’Astronomie”, supervision of mainstream conference and animation of the meteorite stand.