Concept

Gradient électrochimique

Publications associées (200)

Contactless electrochemical actuator for precise sampling on microchip

Martinus Gijs, Lynda Metref, Daniel Berdat

The scope of this work has been the design of a mechanical actuator in polydimethylsiloxane (PDMS) / glass for precise liquid sampling, based on the electrochemical generation of O2. The device is composed of two chambers separated by a PDMS membrane. In t ...

2005

Probing the ultrafast charge translocation of photoexcited retinal in bacteriorhodopsin

Majed Chergui, Frank van Mourik, Selma Schenkl

The ultrafast evolution of the electric field within bacteriorhodopsin was measured by monitoring the absorption changes of a tryptophan residue after excitation of retinal. The Trp absorption decreases within the first 200 femtoseconds and then recovers o ...

2005

Redox Properties of Self-Assembled Gold Nanoclusters

Hubert Girault, Bin Su

The redox properties of a monolayer of alkanethiolate-protected gold nanoclusters (MPCs) constructed on a gold slide electrode was studied in 1,2-dichloroethane (DCE) electrolyte solutions. The influence of the electrostatic interaction between attached MP ...

2005

Electrochemical oxygen transfer reaction on synthetic boron-doped diamond thin film electrode

Synthetic boron-doped diamond thin film is a new promising anode material. Because of its properties (high anodic stability under drastic conditions and wide potential window), it is widely investigated for numerous possible electrochemical applications su ...

EPFL2004

Electrochemical oxidation of organics on iridium oxide and synthetic diamond based electrodes

Christos Comninellis, György Foti

A review with refs. concerning electrochem. oxidn. of orgs. in aq. media on iridium oxide and synthetic diamond based electrodes is presented. Effect of nature of electrode material influence on selectivity and efficiency of this process is considered. The ...

Plenum Press2004

Gyrokinetic global three-dimensional simulations of linear ion-temperature-gradient modes in Wendelstein 7-X

Laurent Villard

Using a global approach for solving an ion gyrokinetic model in three-dimensional geometry the linear stability and structure of ion-temperature-gradient (ITG) modes in the configuration of the stellarator Wendelstein 7-X (W7-X) [G. Grieger , in Plasma Phy ...

2004

Turbulent particle transport in magnetized plasmas

Henri Weisen

Particle transport in magnetized plasmas is investigated with a fluid model of drift wave turbulence. An analytical calculation shows that magnetic field curvature and thermodiffusion drive an anomalous pinch. The curvature driven pinch velocity is consist ...

2003

Electrochemical oxidation of water on synthetic boron-doped diamond thin film anodes

Christos Comninellis, György Foti, Lassine Ouattara, Pierre-Alain Michaud, Marco Panizza

Electrolysis in aq. 1M HClO4 and 1M H2SO4 solns. was carried out under galvanostatic conditions using B-doped diamond electrodes (BDD). Analyses of the oxidn. products showed that in 1M HClO4 the main reaction is oxygen evolution, while in H2SO4 the main r ...

Springer, Kluwer Academic Publishers2003

Electrochemical oxidation of water on synthetic boron-doped diamond thin film anodes

Christos Comninellis, György Foti, Lassine Ouattara, Pierre-Alain Michaud, Marco Panizza

2003

Electrochemical oxidation of p-chlorophenol on SnO2-Sb2O5 based anodes for wastewater treatment

Christos Comninellis, Pierre-Alain Michaud

The influence of an IrO2 interlayer between the Ti substrate and the SnO2-Sb2O5 coating on the electrode service life and on the efficiency of p-chlorophenol (p-CP) oxidn. for wastewater treatment has been investigated. The results have shown that if the l ...

2003

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