Concept

Processus thermodynamique

Publications associées (439)

A Highly Stable Gadolinium Complex with a Fast, Associative Mechanism of Water Exchange

André Merbach, Lothar Helm, Gaëlle Nicolle

The stability and water exchange dynamics of gadolinium (GdIII) complexes are critical characteristics that determine their effectiveness as contrast agents for magnetic resonance imaging (MRI). A new heteropodal GdIII chelate, [Gd-TREN-bis(6-Me-HOPO)-(TAM ...

2003

Covalent labeling of fusion proteins with chemical probes in living cells

Horst Vogel, Kai Johnsson, Horst Pick, Alexandre Juillerat, Thomas Gronemeyer, Antje Keppler

A general method for the specific and covalent labeling of fusion proteins in vivo is described. The approach is based on the unusual mechanism of the human DNA repair protein O6-alkylguanine-DNA alkyl-transferase, which irreversibly transfers an alkyl gro ...

2003

Evidence for strong correlations in a 1D Peierls system

Marco Grioni, Helmuth Berger, Luca Perfetti

New temperature-dependent angle resolved photoemission (ARPES) data on the quasi-one-dimensional Peierls compound (TaSe4)(2)I suggest a new interpretation of the spectral lineshapes, which removes discrepancies with the transport and thermodynamic results. ...

2002

Determination of Chemical Diffusion and Surface Exchange Coefficients of Oxygen by Electrochemical Impedance Spectroscopy

Jan Van Herle, Stefan Diethelm, Alexandre Closset

A rigorous mathematical model is developed for the complex impedance of a solid-state electrochemical cell, which is commonly used for the measurement of oxygen transport, oxygen exchange kinetics and thermodynamic properties of nonstoichiometric mixed con ...

2002

Transient behavior of electrochemical promotion of gas-phase catalytic reactions

Christos Comninellis, György Foti, Ivan Bolzonella

Electrochem. promotion (EP) of gas-phase catalysis with O2--conducting solid electrolytes is addressed. The behavior of the ref. electrode, prepd. by deposition of a gold film, was found to be quasi-reversible, 12O2/O2- being the potential detg. redox coup ...

2002

The Bases of Chemical Thermodynamics: Volume 1

Michael Graetzel, Pierre Infelta

The Bases of Chemical Thermodynamics: Volume 1 In this volume (volume 1), the fundamental aspects of thermodynamics are presented. The first and second laws of thermodynamics are illustrated. The need to define thermodynamic temperature and the nature of e ...

Universal Publishers2002

The Bases of chemical Thermodynamics: Volume 2

Michael Graetzel, Pierre Infelta

The Bases of Chemical Thermodynamics: Volume 2 In this volume (volume 2), the tools necessary to study and understand systems in which chemical reactions can take place are developed. The variables of reaction are the keys to this understanding. Criteria f ...

Universal publishers2002

Experimental study on a heavy film cooled nozzle guide vane with contoured platforms

Gregory Vogel

Nowadays, efficiency improvement of the modern gas turbines is usually achieved by increasing the pressure ratio which leads to an increase of the gas temperature in the combustion chamber. As a consequence, the temperature conditions imposed on the first ...

EPFL2002

The second law: statement and applications

Pierre Infelta

The second law of thermodynamics is often expressed as the fact that the entropy of an isolated system increases when a spontaneous change takes place. While this statement is true, a more general formulation can easily be presented to students. Starting f ...

2002

Alternative anode materials for methane oxidation in solid oxide fuel cells

Joseph Sfeir

Fuel Cells are electrochemical devices that are able to directly convert chemical energy to electrical energy, without any Carnot limitation. Hence, their energy efficiencies are relatively high. Among the various types of fuel cells, solid oxide fuel cell ...

EPFL2002

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