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Séminaire Chimie ED459

Aluminium polycations in applications: metal speciation, model systems preparation and bioinorganic interactions in aqueous solutions

Dr. Olivier Deschaume (Laboratory for Soft Matter and Biophysics, Katholieke Universiteit Leuven, Belgium)

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Le Jeudi 12 avril 2018 à 14h,
ENSCM, Amphithéâtre Godechot (campus Balard, 240 av. Émile-Jeanbrau)

(cette conférence sera présentée en français)

Over the last decades, advancing the knowledge of aluminium aqueous chemistry went hand in hand with the development of synthesis, separation and characterization techniques to produce and monitor molecules and colloidal phases in constant interconversion. In this talk we first introduce aluminium ions hydrolysis and condensation pathways in aqueous solution, and describe some of the many resulting molecular species. aluminium polycations, such as Al13 and Al30, are used on a global scale for water treatment, catalysis or in antiperspirants. We present a convenient approach for the targeted synthesis of such molecules in solution or powder form. These polycations are then used to better understand how aluminium is acting in applications, how the different aluminium species interconvert, and what results from aluminium encounters with the biological world.

Contact local IBMM : Prof. Hervé Cottet (équipe DSBC)

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