Ning Yan

Cette personne n’est plus à l’EPFL

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Publications associées (46)

Solvent-enhanced coupling of sterically hindered reagents and aryl chlorides using functionalized ionic liquids

Paul Joseph Dyson, Zhaofu Fei, Ning Yan, Yuehui Li, Xuemei Yang

A highly efficient and poison-resistant system for the Suzuki coupling reaction based on hydroxyl-functionalized ionic liq. solvents has been established. Coupling of RC6H4X (X = Br, I, Cl) and 2-bromothiophene with R1C6H4B(OH)2 in 2-hydroxyethyl-substitut ...

2009

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

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

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

Selective degradation of wood lignin over noble-metal catalysts in a two-step process

Paul Joseph Dyson, Ning Yan, Cheng Wang, Chenxu Zhao

Direct conversion of lignin into alkanes and methanol was carried out in a two-step process (hydrogenolysis and hydrogenation) involving initial treatment of white birch wood sawdust with H2 in dioxane/water/phosphoric acid using carbon supported Ru, Pd, R ...

2008

Biphasic Hydrogenation over PVP Stabilized Rh Nanoparticles in Hydroxyl Functionalized Ionic Liquids

Lioubov Kiwi, Gabor Laurenczy, Paul Joseph Dyson, Zhaofu Fei, Rocio Micaela Crespo Quesada, Ning Yan, Yuehui Li, Xuemei Yang

Polyvinylpyrrolidone stabilized rhodium nanoparticles are highly sol. in hydroxyl-functionalized ionic liqs., providing an effective and highly stable catalytic system. In hydrogenation reactions, excellent results were obtained, and transmission electron ...

2008

Ionic-liquid-like copolymer stabilized nanocatalysts in ionic liquids: II. Rhodium-catalyzed hydrogenation of arenes

Paul Joseph Dyson, Ning Yan, Chenxu Zhao

Rhodium nanoparticles stabilized by the ionic-liq.-like copolymer N-Vinyl-2-pyrrolidone-1-vinyl-3-butylimidazolium chloride-1-vinyl-3-ethylimidazolium bromide copolymer were used to catalyze the hydrogenation of benzene and other arenes in ILs. The nanopar ...

2007

One-Step Conversion of Cellobiose to C6-Alcohols Using a Ruthenium Nanocluster Catalyst

Paul Joseph Dyson, Ning Yan, Huizhen Liu, Cheng Zhao

The one-step conversion of cellulose to C6-alcs. via green and energy efficient approaches has, as far as we are aware, not been reported. Such a process presents a considerable challenge, the two key problems being (1) finding a suitable solvent that diss ...

2006

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