Laboratoire de Chimie de Coordination UPR 8241


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In the present challenge to replace fossil fuels by a clean and renewable energy source, hydrogen (H2) is found to be an excellent candidate because it is a great energy carrier.
Researchers at the Laboratory of Coordination Chemistry have reported the electrocatalytic performance of a porous Ru nanomaterial for the hydrogen evolution reaction, in both acidic and neutral conditions. This efficient electrocatalyst, easily prepared by the organometallic approach that affords a clean metal surface, has displayed a low overpotential of 83 mV at a current density of 10 mA cm-2 and an excellent durability up to 12 h in 0.5 M H2SO4.
This remarkable behavior is attributed to the porous character of the nanomaterial coupled with a weakly coordinated stabilizer which gives rise to a highly accessible metal surface as demonstrated by the high electrochemically active surface area measured, namely 173 m2g-1.
This work has been recently published in the journal Chemical Communications (Chem. Commun. 2017, 53, 11713, 10.1039/c7cc05615j).