Publications related to Reaction rate constant

Pd Nanoparticles in a Supported Ionic Liquid Phase: Highly Stable Catalysts for Selective Acetylene Hydrogenation under Continuous-Flow Conditions

Paul Joseph Dyson, Lioubov Kiwi, Gabor Laurenczy, Marina Ruta

Monodispersed Pd nanoparticles of 5 and 10 nm were obtained via reduction of Pd(acac)2 dissolved in ionic liquid (IL), [bmim][PF6], or [bmimOH][TF2N], supported on carbon nanofibers (CNF) anchored to sintered metal fibers (SMF). Using [bmimOH][TF2N], the m ...

2008

Uncertainties in kinetic hard-modelling of multivariate spectroscopic data

Julien Léo Billeter, Konrad Hungerbühler

Kinetic hard-modelling of multivariate spectroscopic data [1, 2] is a well-established method for the determination of reaction mechanisms and associated rate constants. Kinetic hard-modelling relies on a hard model defined by kinetic rate laws and require ...

2008

Mechanism for the Substitution of an Aqua Ligand of UO2(OH2)(5)(2+) by Chloride

François Rotzinger

Geometry and energy of the reactant (UO2(OH2)(5)center dot Cl+), the transition state (UO2(OH2)(5)center dot center dot center dot Cl+ double dagger), and the product (UO2Cl(OH2)(4)center dot OH2+) of the title reaction have been computed with complete act ...

2008

Non-ideal polymerization kinetics of a cationic double charged acryl monomer and solution behavior of the resulting polyelectrolytes

Jutta Christine Wandrey, Ricardo Losada Mateo

The radical polymerization of bis-1,3(N,N,N-trimethylammonium)-2-propylmethacrylate dichloride revealed non-ideality with 0.59 and 4.4 for the reaction orders of the initiator and monomer concentration, respectively. Further, autoacceleration was observed ...

2008

Single-mechanism rate theory for dynamic strain aging in fcc metals

William Curtin

A full thermal activation rate theory for dynamic strain aging is developed for the case where a single rate dependent strengthening mechanism controls dislocation motion in a material (e.g. solute diffusion). The analysis shows that negative strain-rate s ...

2008

Development of a natural gas reaction mechanism for engine simulations based on rapid compression machine experiments using a multi-objective optimisation strategy

Daniel Favrat, Stefan Heyne

The ignition delay times of CH4/C2H6/C3H8 mixtures representative of an average natural gas composition have been measured in a rapid compression machine (RCM) at the University of Lille. The pressure at the end of compression (EOC) varied from 13 to 21 ba ...

2008

Effect of Lewis acids on the Diels-Alder reaction in ionic liquids with different activation modes

Paul Joseph Dyson, Ana Vidis

The Diels-Alder reaction has been examd. in room temp. ionic liqs. with high molar concns. of Lewis acids under various conditions. A molar ratio of 10% catalyst gave a large increase in the selectivity and the yield of the reaction. The effect of catalyst ...

2008

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

Albert Renken, Lioubov Kiwi, Martin Grasemann

Systematic studies of mass transfer interactions with intrinsic reaction kinetics were performed for the threephase selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) over a modified Pd/CaC

{O}_{3}

catalyst under solvent ...

2008

Fast temperature cycling of the catalytic CO oxidation using microstructure reactors

Martin Luther

The possibility to increase the performance (productivity or selectivity) of a chemical reactor by using periodic variations of reaction parameters (e.g. reactant concentration or temperature) has been theoretically envisaged since the beginning of the 70t ...

EPFL2008

Online optimisation and detection of process upset in semi-batch reactors using a kinetic modelling approach

Julien Léo Billeter, Konrad Hungerbühler

Process Analytical Chemistry/Technology has tremendously evolved in the last decades due to the development of multivariate online sensors that are able to monitor the properties of industrial processes in real time [1, 2]. Online monitoring of product qua ...

2008

Reaction rate constant

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Pd Nanoparticles in a Supported Ionic Liquid Phase: Highly Stable Catalysts for Selective Acetylene Hydrogenation under Continuous-Flow Conditions

Uncertainties in kinetic hard-modelling of multivariate spectroscopic data

Mechanism for the Substitution of an Aqua Ligand of UO2(OH2)(5)(2+) by Chloride

Non-ideal polymerization kinetics of a cationic double charged acryl monomer and solution behavior of the resulting polyelectrolytes

Single-mechanism rate theory for dynamic strain aging in fcc metals

Development of a natural gas reaction mechanism for engine simulations based on rapid compression machine experiments using a multi-objective optimisation strategy

Effect of Lewis acids on the Diels-Alder reaction in ionic liquids with different activation modes

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring

Fast temperature cycling of the catalytic CO oxidation using microstructure reactors

Online optimisation and detection of process upset in semi-batch reactors using a kinetic modelling approach

Uncertainties in kinetic hard-modelling of multivariate spectroscopic data

Mechanism for the Substitution of an Aqua Ligand of UO2(OH2)(5)(2+) by Chloride

Pd Nanoparticles in a Supported Ionic Liquid Phase: Highly Stable Catalysts for Selective Acetylene Hydrogenation under Continuous-Flow Conditions

Non-ideal polymerization kinetics of a cationic double charged acryl monomer and solution behavior of the resulting polyelectrolytes

Development of a natural gas reaction mechanism for engine simulations based on rapid compression machine experiments using a multi-objective optimisation strategy

Single-mechanism rate theory for dynamic strain aging in fcc metals

Effect of Lewis acids on the Diels-Alder reaction in ionic liquids with different activation modes

Fast temperature cycling of the catalytic CO oxidation using microstructure reactors

Online optimisation and detection of process upset in semi-batch reactors using a kinetic modelling approach

Three-Phase Catalytic Hydrogenation of a Functionalized Alkyne: Mass Transfer and Kinetic Studies with in Situ Hydrogen Monitoring