CEMHTI Orleans

Platform name
CEMHTI
Website
https://www.cemhti.cnrs-orleans.fr/Equipes/?equipe=MatRMag
City
Orleans
Address

1D Avenue of Scientific Research,
45071 Orleans

Scientific Officer
Teacher. Michael Deschamps (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)
Operational manager
Dr. Vincent Sarou-Kanian (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)
Communication correspondent
Dr. Vincent Sarou-Kanian (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)
Management manager
Ms. Lorraine Hammer (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)

The NMR platform of the CEMHTI laboratory (Extreme Conditions and Materials: High Temperature and Irradiation, CNRS UPR 3079) in Orléans is integrated into Infranalytics via access to the community of its 850 MHz (20 T) NMR spectrometer dedicated to high resolution NMR solid state and high temperature NMR. Constituted around an instrumental park of 6 NMR spectrometers (200 → 850MHz), the MateRMag team of the CEMHTI has an internationally recognized expertise in the fields of:

  • Characterization and modeling of the structure of organic, inorganic or hybrid solids and molten media at the atomic scale: crystalline, amorphous, glassy materials from the glass or cement industry, catalysis, dedicated to energy storage, biocompatible, …
  • The monitoring of structure and atomic mobility modifications in materials for the electrochemical storage of energy in charge, discharge (ex situ, in situ): local environment of atoms, measurement of diffusion coefficients, etc.
  • Quantification of the dynamics of very high temperature molten oxides and its impact on rheological properties.
  • The structure and dynamics of molten salts at high temperature, applied to industrial processes (electrolysis, nuclear, metallurgy...).
  • Process monitoring (cleaning, surface treatment, leaching release), applied to ceramics, glass and glass-ceramics
  • Localized imaging and spectroscopy in materials (biomaterials, porous media for catalysis, electrochemical devices ,...).

Equipment

NMR 850

Magnetic field
20T/850MHz Wide Bore
Description
Bruker Avance NEO Console
Specificities
MAS 0.7mm H/FX probe with a range of X cores (14N-31P) and MAS 1.3mm HF-XY probe with separate 1H and 19F channels (unique in France). High temperature probes up to 1500°C. Auto Tune/Match for acquiring spectra over a wide spectral range.
Measurement probes

High Resolution Solid State NMR (static - 111kHz)

  • MAS 0.7mm H/FX, range: 14N-31P, T = 5°C - +50°C
  • MAS 1.3mm H/F-XY, range: 15N-31P, T = -30°C - +80°C, XY pairs (inserts): 27Al/15N, 27Al/29Yes, 31P/27To the, 11B/17O-29Si
  • MAS 1.3mm HF-XY, HFX mode range: 14N-31P, HF-XY quad mode (inserts): 31P/29Yes-23N / A, 13C/15N,11B/29Yes-23Na
  • MAS 2.5mm H/F-XY, range: 15N-31P, T = -30°C - +80°C, XY pairs (inserts): 27Al/29Yes, 11B/29Yes, 11B/27To the, 31P/27Al
  • MAS 3.2mm H/F-XY, range: 2D - 31P, T = -140°C - +150°C, XY pairs (inserts): 13C/15N, 27Al/29Yes, 11B/29Yes, 31P/29Yes-27Al
  • MAS 3.2mm H/F-XY, range: Double Broad Band (stop circuit coils), T = -140°C - +150°C, X ~ 165MHz - 270MHz, Y ~ 35MHz - 190MHz (Y range depends on X)
  • MAS 4.0mm H/FX , range: 103Rh- 13C, -140°C - +150°C
  • MAS 3.0mm HX” 11B free” (Doty), range: 15N, 29Yes, 79Br, 13C, 27To the, 11B, 31P, -140°C - +170°C
  • Static X 5.0mm “low gamma”

 High Temperature Solid/Liquid NMR

  • 7mm MAS (4-5kHz), H/FX, range 14N-31P, RT - +600-700°C
  • Static 10.0mm UHT, range: 29Yes - 11B, RT - +1500°C
Expertise and services
  • Structural order and disorder in solids and molten media, modelling: inorganic, hybrid, amorphous, glassy, ​​mesoporous, biocompatible crystalline materials...
  • Set of standard and advanced solid-state NMR techniques for the characterization of materials
  • Quadrupole nuclei (MQMAS, STMAS)
  • Homonuclear experiments via chemical bonding or space (INADEQUATE, BABA, R211, POSTC7...)
  • Heteronuclear experiments via chemical bonding or space (CPMAS, INEPT, HMQC, HSQC, REDOR-type...). Indirect detection
  • Low gamma nuclei (25Mg, 69Zn, 43Ca, 33S, 73Ge, 14N). Signal amplification techniques (DFS, QCPMG...)
  • Very high temperature NMR (static conditions and MAS with laser heating)
  • Availability of software: baseline correction "Baseline Corrector" and spectra simulation "Dmfit" (https://nmr.cemhti.cnrs-orleans.fr/Default.aspx)
Other equipment
  • 750MHz Bruker Avance III HD solid, high temperature, imaging and diffusion
dent
  • 400MHz Bruker Advance III Solid
sinmr
  • 400MHz Bruker Avance I Solid, dedicated high temperature (laser heating)
htnmr
  • 300MHz Bruker Advance III Solid
  • 200MHz Bruker Avance III HD Solide, in particular instructed in the study of paramagnetic materials (devices in situ/operando for electrochemistry, MAS probe 1.3mm 65kHz)
super cap