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This site opened on july 2004.

Last update : april 14, 2008.

I have accomplished my university studies at Paris and presented a first thesis, in Radiochemistry speciality, (ref. 1.1.1). Then, I have fulfilled a "Doctorat d'État" related to a comparison between some thermodynamic properties of lanthanide and actinide ions (ref. 1.3.3). After my appointment by CNRS, my entire scientific career has been continued at the "Institut de Physique Nucléaire" (Orsay, France). However, I had the possibility to work, several periods of time at Berkeley (LBL, California) as guest scientist of Professor Glenn Seaborg, then, in collaboration with Ken Hulet and his group from Livermore National Laboratory and with Dick Hahn at the Transuranium Research Laboratory (Oak Ridge National Laboratory). These collaborations were the most exciting experiences of my professional life.
The first part of my scientific activities has been concerned with basic researches on lanthanides and actinides, discoveries of new reducing properties (divalency of californium (ref. 1.2.1, 1.3.1) and other heavy elements) comparison between 4f and 5f elements, electrochemistry and radioelectrochemistry of heavy elements (from weighable amounts to experiments at the few atom scale, ref. 1.5.2, 1.5.4).
Since 1979, I have initiated a collaboration between French Radiochemistry (CNRS) and Russian Academy of Science Laboratories (Institute of Physical Chemistry at Moscow mainly). I have also decided to consider the possible applications of radioactive element chemistry in nuclear energy and waste management of radioactive fuels. A tripartner agreement has been established between Orsay, my Russian colleagues and the Commissariat de l'Energie Atomique (Marcoule Center). This long collaboration had obtained a great impact in the French and Russian Radiochemistry which was emphasized in a recent paper (French-Russian collaboration). But simultaneously, to continue fundamental researches in spite of the national and laboratory difficulties, and disinterests, I have engaged works on the structure of the aquo ions (mobility, conductivity, diffusion of lanthanide and actinide ions), fission element chemistry, and obtained by EXAFS the first local structure in the trivalent actinide series up to the californium ion (ref. 1.2.30). These experimental researches were the starting point of a theoretical work concerned by the modelling of all (monatomic) aquo ions of the Periodic Table (ref.1.6.4), allowing to give reliable predictions on basic properties of elements involved, for instance, in the waste managements.