Publications de Céline Fellay

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

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

Homogeneous catalytic decomposition of formic acid for high pressure hydrogen generation

Céline Fellay

The main obstacles in the widespread use of hydrogen as energetic alternative to fossil fuels are storage problems intrinsically linked to its extremely light and explosive nature. Since no ideal storage systems currently exist, reversible fixation of hydr ...

EPFL2008

Hydrogen production from formic acid

Paul Joseph Dyson, Gabor Laurenczy, Céline Fellay

The present invention relates to a method of producing hydrogen gas and carbon dioxide in a catalytic reaction from formic acid, said reaction being conducted in an aqueous solution over a wide temperature range and already at room temperature (25 DEG C). ...

2008

A viable hydrogen-storage system based on selective formic acid decomposition with a ruthenium catalyst

Paul Joseph Dyson, Gabor Laurenczy, Céline Fellay

The use of formic acid as a hydrogen-storage material has become more feasible thanks to the development of a homogeneous catalytic system of ruthenium water-soluble complexes (Ru/TPPTS; TPPTS=meta-trisulfonated triphenylphosphine) that selectively decompo ...

Wiley-VCH Verlag GmbH2008

Mechanistic Studies on the Formation of eta(2)-Diphosphine (eta(6)-p-cymene)ruthenium(II) Compounds

Paul Joseph Dyson, Gabor Laurenczy, Céline Fellay

A new range of pendent diphosphine (η6-p-cymene)ruthenium(II) complexes, [RuCl(PPh3)(η1-(P-P))(η6-p-cymene)]PF6 (P-P = dppm, cis-PPh2CHCHPPh2

2007

Biphasic catalysis in aqueous and ionic liquid media

Céline Fellay

A review; an overview of recent developments from the Lab. of Organometallic and Medicinal Chem. at the EPFL in biphasic catalysis, involving aq. solns. and ionic liqs., and in CO2 redn. is presented. Progress in the use of ionic liqs., either by catalyst ...

2007