Economically viable hydrogen uptake requests very low platinum, or ideally, platinum-free catalysts since this expensive and scarce metal is not a sustainable resource. We will report on our effort to develop novel biomimetic/bioinspired catalysts for and describe how the combination of a bio-inspired molecular approach with nanochemical tools, through the attachment of mimics of hydrogenase active sites on carbon nanotubes results in nanostructured nickel-based H2-evolving cathode materials with remarkable performances: high reaction rates, bidirectional activity for H2 production or oxidation without any overvoltage, exceptional stability and compatibility with the Nafion technology used for the development of PEMFC and PEM-electrolyzers. We will then report on our recent studies regarding the optimization of such materials and their implementation as the anode catalyst in operational PEM fuel-cell in combination with cobalt-based cathode nanocatalysts or multicopper oxidases.

H2 evolution and uptake: From biomimetic approaches to technologically relevant materials

255th National Meeting (2018)

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