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 Laboratory Studies (3227): People
Claire  Petuya's Picture
4800 Oak Grove Drive
Pasadena, CA 91109
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Curriculum Vitae:

Claire Petuya

I am a postdoctoral researcher in the Planetary Ices section (3227) at JPL. I am working on the stability of clathrate hydrates which are crystalline compounds consisting of water molecules forming cages inside of which guest molecules are encapsulated. These ice-like systems have numerous technical and industrial applications in such different fields like energy and environment. Moreover, clathrate hydrates might also be nodal pieces for astrophysics and planetary science due to their potential involvements in the formation of planetesimals, comets and other planets of our Solar System. Their dissociation in icy satellites interiors is a potential source of gas emissions like in the case of Titan, where dissociation of methane clathrate hydrates could contribute significantly to the replenishment of atmospheric methane. So, the aim of my work is to study these systems to better understand this problematic using Raman spectroscopy, XRD and Calorimetry (DSC) and trying to apply these results to geophysical model of Titan.

Before starting this postdoc, I completed my PhD in chemical physics at the University of Bordeaux (ISM lab) which was about the investigations of the stability, the guest partitioning and the molecular selectivity of gas clathrate hydrates using Raman spectroscopy, neutron diffraction and some DFT calculations (VASP).

  • PhD in Chemical Physics, 10/14-09/17, University of Bordeaux, at Institut des Sciences Moléculaires, France.
  • MSc. in Chemistry, 09/12-06/14, specialization Chemistry and Physico-Chemistry of Materials, University of Bordeaux, France.
  • BSc. in Material Sciences, 09/09-06/12, University of Bordeaux, France.

Research Interests
  • Stability of Clathrate Hydrates on Titan and effect on outgassing to the atmosphere
  • Investigations of stability, guest partitioning and molecular selectivity of gas hydrates by Raman spectroscopy, neutron diffraction and DFT calculations

Professional Experience
  • 11/18-Present : Posdoctoral researcher at JPL-Caltech. Subject: Stability of clathrate hydrates on Titan and effect on outgassing to the atmosphere (NPP funding)
  • 10/17-06/18 :Postdoctoral researcher at Institut des Sciences Moléculaires (ISM) at Univ. Bordeaux. Subject: Multi-scale investigation of the Impact of mineral impurities on gas trapping within clathrate hydrates. (ANR MI2C funding)

Selected Awards
  • NASA Postdoctoral Program fellowship, June 2018
  • French Ministry of Research scholarship, June 2014

Selected Publications

8-Unraveling the stability of the SI and SII carbon monoxide hydrate with a combined DFT-neutron diffraction investigation, The Journal of Chemical Physics, 2019, 150, 184705, C. Petuya, L. Martin-Gondre, P. Aurel, F. Damay, A. Desmedt.

7-Revealing CO preferential encapsulation in the mixed CO-N2 clathrate hydrate, The Journal of Physical Chemistry C, 2019, 123, 8, 4871-4878, C. Petuya, A. Desmedt.

6-Selective trapping of CO2 gas and cage occupancy in CO2-N2 and CO2-CO mixed gas hydrates, Chem. Commun. 201854, 4290-4293, C. Petuya, F. Damay, S. Desplanche, D. Talaga, A. Desmedt.

5-Ageing and modeling of the cage occupancy in nitrogen gas hydrate, Crystals, 2018, 8, 145, C. Petuya, F. Damay, S. Desplanche, C. Aupetit, A. Desmedt.

4-Guest partitioning and metastability of the nitrogen gas hydrate, The Journal of Physical Chemistry C2018122, 566-573, C. Petuya, F. Damay, B. Chazallon, J.-L. Bruneel, A. Desmedt.

3-Guest partitioning in carbon monoxide hydrate by Raman spectroscopyThe Journal of Physical Chemistry C2017121, 13798-13802, C. Petuya, F. Damay, D. Talaga, A. Desmedt.

2-Neutron scattering of semi-clathrate and clathrate hydrates, A. Desmedt, L. Bedouret, J. Ollivier, C. Petuya, in “Gas Hydrates: From Characterization and Modelling to Applications”, Eds D. Broseta, L. Ruffine, A. Desmedt, London: Wiley-ISTE, ISBN: 978-1-84821-969-4, Vol. 1, Chap. 1, 2017.

1-Modifiying the flexibility of of water cages by co-including acidic species within clathrate hydrateThe Journal of Physical Chemistry C2015, 119, 8904-8911, A. Desmedt, L. Martin-Gondre, T. T. Nguyen, C. Petuya, L. Barandiaran, O. Babot, T. Toupance, R. Gary Grim and A. K. Sum.

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