Publication

Using Complex Hydrides for Hydrogen Storage and Direct Borohydride Fuel Cells for Electricity Production

Publications associées (268)

Hydrogen storage properties of as-synthesized and severely deformed magnesium - multiwall carbon nanotubes composite

We prepared a Mg-2 mass % multiwall carbon nanotubes composite employing a powder metallurgy technique. The kinetics of hydrogen absorption/desorption of the as-synthesized composite was much faster than that of reference samples of pure Mg. The pressure-c ...

2010

Effect of the surface oxidation of LiBH4 on the hydrogen desorption mechanism

Shunsuke Kato

The surface oxidation behavior of LiBH4 and NaBH4 was investigated in view of the formation and structure of the surface oxidation and its effect on the hydrogen desorption kinetics. The sample surfaces were intentionally modified by exposure to oxygen in ...

2010

Influence of water-soluble sulfonated phosphine ligands on ruthenium catalyzed generation of hydrogen from formic acid

Paul Joseph Dyson, Gabor Laurenczy, Céline Fellay, Weijia Gan

Hydrogen can be generated from formic acid in aq. phase homogeneous catalytic reactions using ruthenium catalysts with water-sol. phosphine ligands. A comparison of tri-, di-, and mono-sulfonato triphenylphosphine, disulfonato diphenyl-alkyl-phosphines (Ph ...

Taylor & Francis2010

Effect of additives on the synthesis and reversibility of Ca(BH4)(2)

Metal borohydrides are potential materials for solid-state hydrogen due to their high gravimetric and volumetric hydrogen densities. Among them, Ca(BH4)2 is particularly interesting because of the predicted suitable thermodynamic properties. In this work, ...

2010

Molecular electrocatalysis at soft interfaces

Hubert Girault

The fundamental aspects of electrochemistry at liquid–liquid interfaces are introduced to present the concept of molecular electrocatalysis. Here, a molecular catalyst is adsorbed at the interface to promote a proton coupled electron transfer reaction such ...

Royal Society of Chemistry2010

Breaking the passivation-the road to a solvent free borohydride synthesis

We describe a new method for the solvent-free synthesis of borohydrides at room temperature and demonstrate its feasibility by the synthesis of three of the most discussed borohydrides at present: LiBH4, Mg(BH 4)2 and Ca(BH4)2. This new gas-solid mechanoch ...

2010

A quasi-Delphi study on technological barriers to the uptake of hydrogen as a fuel for transport applications : production, storage and fuel cell drivetrain considerations

François Richard Vuille

The introduction of hydrogen in transport, particularly using fuel cell vehicles, faces a number of technical and non-technical hurdles. However, their relative importance is unclear, as are the levels of concern accorded them within the expert community c ...

Elsevier2009

Selective Formic Acid Decomposition for High-Pressure Hydrogen Generation: A Mechanistic Study

Paul Joseph Dyson, Gabor Laurenczy, Ning Yan, Céline Fellay

A homogenous catalytic system has been developed that efficiently and selectively decomposes formic acid into hydrogen and carbon dioxide. [Ru(H2O)6]2+, [Ru(H2O)6]3+ and RuCl3·xH2O are all excellent precatalysts in presence of TPPTS (TPPTS=meta-trisulfonat ...

2009

Hydrogen sensors based on palladium micro- and nanostructures for fuel cell applications

Thomas Kiefer

Hydrogen (H2) has raised considerable interest as a future energy carrier in its application to fuel cell driven vehicles, as it is absolutely free of polluting emissions. However, it is flammable in air and difficult to contain, for which reason innovativ ...

EPFL2009

Investigation of hydrogen storage in carbon nanotube-magnesium matrix composites

Daniele Mari, Robert Schaller, Iva Tkalcec Vâju

Magnesium (Mg) and magnesium nickel (Mg-23.5 wt%Ni) reinforced with multiwalled carbon nanotubes (CNTs) were processed by powder metallurgy and then charged with hydrogen by annealing at 620 K under a pressure of 0.4 MPa of hydrogen. Mechanical spectroscop ...

2009

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