Chemical and textural analysis

The chemical and textural service is equipped with two spectrometers dedicated to the determination of metals amount in solids or in solutions:

– a plasma optical emission spectrometer ( ICP-OES)
– and an energy dispersive X-ray fluorescence spectrometer (ED-XRF)

For textural characterization, the service is equipped with two volumetric devices specially adapted for studies of mesoporosity and microporosity of solids with chemisorption and vapor option.

Equipment

The service is part of the of the platform for Catalytic Materials Characterization for IRCELYON catalysis and also provides analytical support to the scientific community of Lyon

  

ICP-OES
ACTIVA de Horiba Jobin Yvon

 
Analytical technique Technical specifications
  • Enables the analysis of approximately 70 elements in solution
  • Detection limit of 0.1mg / L for most elements.
  • CDD detector
  • 2 Holographic grating spectral range 160-800 nm nitrogen purged for elements < 190 nm
Allows a semi-quantitative panoramic analysis by the exploitation of the complete emission spectrum. Software WAV IMAGE.

ED-XRF
EPSILON 4 de Panalytical
Analytical technique Technical Specifications
  • Determination from Na à l’U
  • No-destructive analysis
  • Tube with anode Ag 15W-3mA
  • Resolution (Mn Kα): 135 eV
semi-quantitative measurement

Determination of elements in oils

 Logical Omnian.

Logical Oil traces.

Smart Vac Prep de Micromeritics
Analytical technique Technical Specifications
Gas Adsorption Sample Preparation

 

 Vacuum 1.10-3 mmHg

Temperature up to 450°C

ASAP 2020 de Micromeritics
Analytical technique Technical Specifications
Study of the mesoporosity of solids (2 nm < Ø < 200 nm). Equipped with 2 transducers (1000, 10 mmHg).
  • Distribution of mesoporous volumes and surface
  • Isotherm from 10‑2 P/Po
  • BET surface Area
  • t-Plot
  • BJH Adsorption and Desorption.
 Gas available for physisorption measurements:  N2

3 Flex de Micromeritics
Analytical technique Technical Specifications
Study of the mesoporosity and microporosity of solids (0.4 < Ø < 200 nm). Equipped with 3 transducers (1000, 10 and 0.1 mmHg).
  • Distribution of mesoporous volumes and surfaces.
  • Isotherm from 10‑7 P/Po,
  • BET and Langmuir surface Area,
  • t-Plot
  • BJH Adsorption and Desorption’Horvath-Kawazoe,
  • Dubinin et MP Method,
  • DFT Pore Size and Surface Energy
 Gas avalaible for physisorption measurements: nitrogen or krypton.
The chemisorption isotherms enable to determine the dispersion of the metallic phase of a catalytic solid at temperatures > -20 ° C Gas available: H2, CO, O2
The water vapor adsorption isotherms allows studies of hydrophilic / hydrophobic properties of the surface of the catalysts. Water vapor or other vapors

Results

  • Analysis of Si, Al and Na by Fluo-X and ICP-OES

Spectrum of Fluo-X

Report Si/Al in Fluo-X

Comparison between Fluo-X and l’ICP-OES

Keywords

  • ICP-OES
  • ED-XRF
  • Chemisorption
  • Physisorption
  • Water vapor
  • Desorption
  • Surface Area
  • Porosity

Staff

  • Personnels techniques (en)

    • Nicolas Bonnet
    • Pascale Mascunan
    • Garance Contassot

Publications

All recent publications