Institut de Chimie Moléculaire et des Matériaux d'Orsay

Equipe de Recherche et d'Innovation en Electrochimie pour l'Energie (ERIEE)

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Hydrogen Storage/purification




material science

  • elaboration of metal and alloy nano-particles

  • electrochemical hydrogen insertion

  • gas-phase hydrogen insertion



Electrochemical sorption isotherm
of the PdH system



Pd nanoparticles.



Isotherms on bulk and nanoPD-H.



hydrogen storage in hydride forming materials

  • isotherms

  • gas-phase impedance measurement

  • modelling



Gas-phase isotherms measured
on LaNi5-H2.


Gas-phase impedance diagrams during the hydriding of LaNi5H2.



Gas-phase impedance diagrams of LaNi5H2 during air contamination.




hydrogen purification by permeation

  • elaboration of metallic membrane materials

  • permeation across thin supported Pd-based membranes

  • permeation through multi-wall cylinders



Ti-supported micrometer thick Pd membrane



Typical impedance diagram of H2 permation through Pd.




Impedance diagrams of H2
permeation through Pd hollow


Some scientific publications related to hydrogen storage

  • P. Dantzer and P. Millet, Advances in hydride phase growth : automatic high precision calorimeter – volumetric devices, for thermodynamic and kinetics analyses, Rev. Sci. Instrum., 71 (2000) 142-153

  • P. Dantzer, P. Millet and T. Flanagan, Thermodynamic characterization of hydride phase growth in ZrNi-H2, Metallurgical and Materials Transactions A, 32 (2001) 29-38

  • P. Dantzer and P. Millet, Heat flux calorimetry in intermetallic compound - H2(g) systems : heat measurements and modeling in the low pressures range, Thermochimica Acta, 370 (2001) 1-14

  • P. Millet, C. Lebouin, A. Ranjbari, R. Ngameni, M. Guymont, Characterization of Metal hydrides using pneumato-chemical impedance spectroscopy, Int. J. Hydrogen Energy, 34 (2009) 4990-4996

  • C. Lebouin, Y. Soldo, P. Millet, Kinetics of hydrogen sorption by palladium nanoparticles, Int. J. Hydrogen Energy, 38 (2013) 966-972


Some scientific publications related to hydrogen permeation

  • C. Decaux, T. Mehdoui, R. Ngameni, A. Ranjbari, P. Millet, Frequency-domain analysis of hydrogen permeation across Pd77Ag23 metallic membranes, Int. J. Hydrogen Energy, 34 (2009) 5003-5009

  • C. Decaux, R. Ngameni, D. Solas, S. Grigoriev, P. Millet, Time and frequency domains analysis of hydrogen permeation across PdCu metallic membranes for hydrogen purification, Int. J. Hydrogen Energy, 35 (2010) 4883-4892

  • P. Millet, R. Ngameni, C. Decaux, S. Grigoriev, Hydrogen sorption by Pd77Ag23 metallic membranes. Role of hydrogen content, temperature and sample microstructure, Int. J. Hydrogen Energy, 36 (2011) 4262-4269

  • C. Decaux, R. Ngameni, A. Ranjbari, S. Grigoriev, P. Millet, Dynamics of hydrogen permeation across metallic membranes, Int. J. Hydrogen Energy, 38 (2013) 8584–8589