Christophe Tournassat
Christophe Tournassat is a Project Scientist, Energy Geoscience Division, LBNL; a Staff Scientist, BRGM, France; and Group leader, ISTO (University of Orléans – CNRS – BRGM), France
Education
2000 Ph.D. Geochemistry, Université de Grenoble, France
2016 Habilitation Geology, Université de Nantes, France
Research and Professional Experience
2017-present Group leader, ISTO (University of Orléans – CNRS – BRGM), France
2017-present Project Scientist, Energy Geoscience Division, LBNL
2014-2017 Affiliate scientist, Energy Geoscience Division, LBNL
2003-present Staff scientist, BRGM, France
Publications
5 publications most closely related to the proposed project:
Tournassat, C., Steefel, C. I. & Gimmi, T. (2020) Solving the Nernst-Planck equation in heterogeneous porous media with finite volume methods: averaging approaches at interfaces. Water Resources Research, 56, e2019WR026832. Link
Tournassat, C. & Steefel, C. I. (2019) Reactive transport modeling of coupled processes in nanoporous media. Reviews in Mineralogy and Geochemistry, 85, 75-109 Link
Tournassat, C. & Steefel, C. I. (2020) Modeling diffusion processes in the presence of a diffuse layer at charged mineral surfaces. A benchmark exercise. Computational Geosciences, Link
Bourg, I. C., Lee, S. S., Fenter, P. & Tournassat, C. (2017) Stern layer structure and energetics at mica–water interfaces. Journal of Physical Chemistry C 121, 9402–9412. Link
Tournassat, C., Bourg, I. C., Holmboe, M., Garrison, G. & Steefel, (2016) C. I. Molecular dynamics simulations of anion exclusion in clay interlayer nanopores. Clays and Clay Minerals, 64, 374–388. Link
5 other significant publications:
Le Crom, S., Tournassat, C., Robinet, J-C., Marry, V. (2020) Influence of polarisability on the prediction of the electrical double layer structure in a clay mesopore: a molecular dynamics study. Journal of Physical Chemistry C, 124, 6221-6232. Link
Marty, N. C. M., Grangeon, S., Elkaïm, E., Tournassat, C., Fauchet, C. & Claret, F., 2018. Thermodynamic and crystallographic model for anion uptake by hydrated calcium aluminate (AFm): an example of molybdenum. Scientific Reports, 8, 7943. Link
Tournassat, C., Tinnacher, R. M., Grangeon, S. & Davis, J. A. (2008) Modeling uranium(VI) adsorption onto montmorillonite under varying carbonate concentrations: A surface complexation model accounting for the spillover effect on surface potential. Geochimica et Cosmochimica Acta 220, 291–308 Link
Tournassat, C., Davis, J. A., Chiaberge, C., Grangeon, S. & Bourg, I. C. (2016) Modeling the acid–base properties of montmorillonite edge surfaces. Environmental Science & Technology, 50, 13436–13445 (2016). Link
Tournassat, C. & Steefel, C. I. Ionic transport in nano-porous clays with consideration of electrostatic effects. Reviews in Mineralogy and Geochemistry 80, 287–330 (2015). Link
Synergistic Activities
Associate editor for Geochimica et Cosmochimica Acta, member of the editorial board of Applied Clay Science, Associate editor for Journal of Hydrology (2012-2018), co-editor of Reactive Transport in Natural and Engineered Systems. C. Tournassat & J. Druhan (Eds.), Mineralogical Society of America, Volume 85 in “Reviews in Mineralogy & Geochemistry” (2019), lead editor of Natural and Engineered Clay Barriers, Tournassat, C., Steefel, C., Bourg, I. & Bergaya, F. (Eds.), Elsevier, Volume 6 in series “Developments in Clay Science” (2015). Member of the scientific committee of the “Clay conference”, Nancy, France, initially scheduled in June 2020.