Find  efficient reversible hydrogen storage materials is still  challenging. I foccus my research on new materials involving the coordination of H2. The mechanism study of reversible H2 release processes is a key step to access to original compounds.  Solid and liquid materials for  hydrogen storage are studied.

Solid Hydrogen Storage

I  develop  hybrid solid hydrogen storage materials involving metal hydrids (MHx) or Metal Organic Frameworks (MOF) doped by  transition metals. The  quantities of transition metals added is small, in order to keep the best volumetric and gravimetric  properties of the starting materials.

A  spillover effect is researched for improving thermodynamic and  kinetic properties for the reversible hydrogen storage of such materials.

 

 

Models for Hydrogen Storage

My background research is to find new poly dihydrogen systems. We have dmostrate that ruthenium metal is able to coordinate  2 H2 molecules without H-H bound breaking.( so called sigma-H2 complexes). This  coordination mode allows reversible coordination of hydrogen under smooth reaction condition (close to room temperature and low pressure < 4 bar). These compounds are able to store for the moment up  to 1.7 % w/w of H2. These compounds are good models to understand the mechanisms involved in reversible hydrogen release at the molecular level for hybrid materials.

Liquid Organic for Hydrogen Storage

Hydrogen storage materials in liquid  phase  atm atmospheric pressure and room temperature is an alternative to the solid and gas or liquified H2 storage.  This option will be the easiest way for the energic transition between fossil energy to hydrogen  energy by using the  current gasoline network.  The techlogical lock is to find the best Liquid Organic Hydrogen Carrier (LOHC) associate with efficient catalysts  for reversible hydrogen release. I focus my research strategy on   nitrogen containing  LOHC.