From hydrogenases to noble metal-free catalytic nanomaterials for H2 production and uptake.

Title	From hydrogenases to noble metal-free catalytic nanomaterials for H2 production and uptake.
Authors	Alan Le Goff, Vincent Artero, Bruno Jousselme, Phong Dinh Tran, Nicolas Guillet, Romain Métayé, Aziz Fihri, Serge Palacin, Marc Fontecave
Magazine	Science (New York, N.Y.)
Date	12/04/2009
DOI	10.1126/science.1179773
Introduction	The conversion of water and hydrogen in regenerative fuel cells offers a promising method for energy storage, addressing the variability of solar and wind power. However, to make this technology cost-effective, there is a need to replace platinum catalysts with more affordable materials. This study demonstrates that attaching a nickel bisdiphosphine-based mimic, resembling the hydrogenase enzyme's active site, to multiwalled carbon nanotubes creates a highly effective cathode material. This material shows exceptional catalytic performance in the acidic conditions necessary for proton exchange membranes, with hydrogen evolving at low overvoltages and exhibiting high stability. Additionally, the catalyst is efficient in hydrogen oxidation, providing current densities comparable to those of hydrogenase materials.
Quote	Alan Le Goff, Vincent Artero and Bruno Jousselme et al. From hydrogenases to noble metal-free catalytic nanomaterials for H2 production and uptake. 2009. DOI: 10.1126/science.1179773
Element	Carbon (C) , Nickel (Ni) , Platinum (Pt) , Hydrogen (H) , Sulfur (S)
Materials	Nanocomposites
Topics	Fuel Cell Materials
Industry	Energy Storage & Batteries , Fuel Cells