CEMHTI - Conditions Extrêmes et Matériaux : Haute Température et Irradiation
UPR3079 CNRS

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TGIR-RMN-THC Fr3050

supported by Région Centre

DRRT Région Centre
Projet cofinancé par l'Union Européenne
L'Europe s'engage avec le Fonds Européen de développement régional.

NMR research groups @ CEMHTI (former CRMHT)


Actvités RMN du CEMHTI
D.Massiot, Progrès récents de la Résonance Magnétique nucléaire du solide pour la caractérisation structurale de matériaux. Spectra Analyse 21 27-33 2002

dominique.massiot@cnrs-orleans.fr  Dominique Massiot   research group...
Solid State NMR, High Temperature NMR, Oxydes, Hybrids , Disordered Solids
RMN du solide, RMN Haute Température, Oxydes, Hybrides, Matériaux Désordonnés.

bessada@cnrs-orleans.fr  Catherine Bessada   research group...
Molten salts, Structure and Dynamics by Solid State NMR and high temperature NMR
Sels Fondus, Structure et Dynamique par RMN du solide, et RMN Haute Température

florian@cnrs-orleans.fr  Pierre Florian   research group...
High Resolution Solid State and High Temperature NMR
RMN Haute Résolution Solide et Haute Température

NMR publications @ CEMHTI

Demande d'Expérience / Ask for experimental time by contacting :
TGI-RMN-THC FR3050
or / ou
florian@cnrs-orleans.fr  Pierre Florian   [+33](0)238 25 55 04


High Temperature NMR experimental setup


High temperature setup associating CO2 laser heating and crucible or levitation device.

Three of our spectrometers (750MHz, 400MHz and 300MHz) are equiped for laser heated High or Very High Temperature experiments :

  • Closed BN crucible container (Tmax ~1200°C) - application for molten silicates or molten salts
  • Aerodynamic levitation device (Tmax ~2500°C) for direct laser heating of the sample droplet under oxidizing or neutral atmosphere - application to refractory liquids (aluminates, alumino silicates...)
  • Two CO2 lasers of typically 100 to 150W depending on the system for heating from top / bottom with computer control

Spectrometers Channels Probes & Capabilities

Bruker
Avance 750MHz

National facility

4 channels
H/F,X,Y,Z
  • MAS 70kHz double tune - ordered
  • MAS 2.5mm double tune H/F, X
  • MAS 2.5mm triple tune H/F, X, Y
  • MAS 3.2mm triple tune X, Y, Z - 27Al, 17O, 31P unique design
  • MAS 4.0mm DOTY triple tune - 27Al, 11B, 29Si  unique design
  • MAS 4.0mm double tune H/F, X
  • MAS 4.0mm triple tune H/F, X, Y
  • MAS 7.0mm single tune low gamma nuclei
  • High temperature single tune crucible Tmax ~1300°C / levitation Tmax 2000°C  unique design

Bruker
Avance 400MHz

3 channels
H/F,X,Y
  • MAS 2.5mm double tune H/F, X
  • MAS 2.5mm triple tune H/F, X, Y
  • MAS 3.2mm triple tune H/F, X, Y
  • MAS 4.0mm double tune
  • High Temperature single tune crucible Tmax ~1300°C / levitation Tmax 2000°C unique design
  • High Temperature single tune crucible Tmax ~900°C / Diffusion measurments (50G/cm gradients)

Bruker
Avance 300MHz

2 channels
H/F,X
  • MAS 2.5mm single tune X
  • MAS 4.0mm double tune H/F, X
  • MAS 3.2mm single tune
  • MAS 7.0mm double tune
  • High Temperature single tune crucible Tmax ~1300°C / levitation Tmax 2000°C  unique design