Contactez-nous! +33 (0)2 31 45 28 21
lcs@ensicaen.fr
  • Français
Laboratoire Catalyse et SpectrochimieLaboratoire Catalyse et SpectrochimieLaboratoire Catalyse et SpectrochimieLaboratoire Catalyse et Spectrochimie
  • Who are we?
  • Research at LCS
    • Research at LCS
    • News
    • Lab activities and organization
    • Education
    • The doctoral and postdocs blog
    • History
  • Technical platforms
    • Catalytic Tests & Chemisorption Platform
    • VISIO platform
    • Solid State NMR platform
      (NMR center of Caen-Normandy)
    • Synthesis & Characterization Platform
  • Industrial partnership
  • Contact us!
    • Work at the lab
    • Contact us!
    • Laboratory staffs
    • LCSValoris serving companies
Next Previous

PhD defense : Abdelhafid AIT BLAL

8 December 2020

Characterization of diffusion in hierarchical zeolites by infrared spectroscopy

Characterization of diffusion in hierarchical zeolites by infrared spectroscopy

Abstract: This work aimed at developing and benchmarking a new method of investigation of molecular diffusion in zeolite-based materials. It consists in the hyphenation of gravimetric analysis and infrared spectroscopy. The former allows assessing the diffusion from the gas phase to all the porosity, while IR spectroscopy allows for selective assessment of the diffusion to the zeolite active sites located in the micropores by monitoring the evolution of their coverage by the molecular probe. An original method of data processing, based on the inversion of the integral equations describing the uptake curves or infrared spectra has also been developed. These methods were applied to the characterization of (i) model mechanical mixtures of H-MFI and H-FAU zeolites, (ii) hierarchical H-MFI zeolites obtained by treatment in a fluoride medium, and (iii) model composite catalyst made of Al-MCM-41 and hierarchical H-MFI.  Our results show that the relative values of diffusion rates as measured by gravimetric and IR spectroscopy are indicative of the quality of connectivity between meso- and microporous networks, and could thus be used to qualify zeolite-based hierarchical materials.

Keywords: Zeolite-based materials, Hierarchical zeolite, Diffusion, Catalytic cracking, Gravimetric analysis, Infrared spectroscopy.

 

 

 

 

La soutenance de thèse aura lieu le lundi 14 décembre à 10h00 par visioconférence, avec le jury suivant:

Jean-Pierre BELLAT, Professeur, Université de Bourgogne
Benoît LOUIS, Directeur de recherche CNRS, Université de Strasbourg, Rapporteur
Sandrine BOURRELLY, Maître de Conférences, Université de Marseille, Examinatrice
Thomas BELIN, Maître de Conférences, Université de Poitiers, Examinateur
Gerhard PIRNGRUBER, Ingénieur de recherche, Chef de projet, IFPEN, Lyon, Examinateur
Alexandre VIMONT, Co-directeur de thèse, LCS
Arnaud TRAVERT, Directeur de thèse, LCS

 

 

  • You may also like

    SpectroCat Workshop (Caen, Normandy, May 30-31, 2018)

    Read now
  • You may also like

    1st International GFZ à Cabourg (Mars 2018) : Groupe Français des zéolithes

    Read now
  • You may also like

    Nanozeoxy: un projet dans le programme prématuration du CNRS

    Read now
  • You may also like

    Edwin Clatworthy: 1st prize for the best oral communication at 36 th annuel reunion of GFZ

    Read now
  • You may also like

    Jeudis du GECAT: “New acid zeolites obtained from silicogermanates” par Elsy El Hayek, le 8avril à 14:00

    Read now
  • You may also like

    Lists of scientific publications – March 2021

    Read now
  • You may also like

    LISTS OF SCIENTIFIC PUBLICATIONS – February 2021

    Read now

Twitter timeline

Catalyse & Spectro
13m
Catalyse & Spectro
@labo_lcs

🧪#OpenAccess: Ultrafast time-resolved quantum cascade laser diagnostic for enlightening the role of surface formate species in the photocatalytic oxidation of methanol ▶️hal.archives-ouverte… @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS pic.twitter.com/Uz1k…

Expand reply reply retweet retweet favorite favorite
Institut Carnot Energie & Systèmes de Propulsion
19h
Institut Carnot Energie & Systèmes de Propulsion
@Carnot_ESP

Une technologie totalement innovante qui fonctionne aussi bien pour l'habitat que pour la voiture. Un partenariat réussi entre la société @teqoya et 2 laboratoires @Carnot_ESP : le @labo_lcs et le #CERTAM @Reseau_Carnot #RetD #innovation #partenariat #industrie twitter.com/Reseau_C…

Retweeted by Catalyse & SpectroRetweeted by Catalyse & Spectro
Expand reply reply retweet retweet favorite favorite
Catalyse & Spectro
19 Apr
Catalyse & Spectro
@labo_lcs

🩺Nanozeoxy: un projet dans le programme prématuration du CNRS - Son but: augmenter l'efficacité des protocoles de #radiothérapie 👉lcs.ensicaen.fr/nano… #zéolithe #tumeur @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS @CNRS_Normandie @normandieuniv pic.twitter.com/VeGw…

Expand reply reply retweet retweet favorite favorite
Institut Carnot Energie & Systèmes de Propulsion
19 Apr
Institut Carnot Energie & Systèmes de Propulsion
@Carnot_ESP

🇬🇧🗂️The ESP Carnot fact sheet is now available in English: instituts-carnot.eu/… @Reseau_Carnot #research #innovation #industry #partnership pic.twitter.com/AyM0…

Retweeted by Catalyse & SpectroRetweeted by Catalyse & Spectro
Expand reply reply retweet retweet favorite favorite
Catalyse & Spectro
18 Apr
Catalyse & Spectro
@labo_lcs

🧪Control the position of #framework defects in #zeolites by changing the symmetry of organic structure directing agents ▶️doi.org/10.1016/j.mi… @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS @CNRS_Normandie @normandieuniv

Expand reply reply retweet retweet favorite favorite
Catalyse & Spectro
16 Apr
Catalyse & Spectro
@labo_lcs

🆕#OpenAccess: Offretite #Zeolite Single Crystals Synthesized by Amphiphile-Templating Approach ▶️ doi.org/10.3390/mole… @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS @CNRS_Normandie @normandieuniv pic.twitter.com/Tyfz…

Expand reply reply retweet retweet favorite favorite
Institut Carnot Energie & Systèmes de Propulsion
15 Apr
Institut Carnot Energie & Systèmes de Propulsion
@Carnot_ESP

💡#ClipFam: un projet sur la fabrication additive porté par un consortium normand dont 3 laboratoires @Carnot_ESP : @CRISMAT_CNRS , #GPM et #CEVAA (@Groupe6NAPSE ) Les 1ers résultats: nae.fr/fabrication-a… @Reseau_Carnot @NormAeroEspace #RetD #recherche #innovation #industrie

Retweeted by Catalyse & SpectroRetweeted by Catalyse & Spectro
Expand reply reply retweet retweet favorite favorite
Catalyse & Spectro
15 Apr
Catalyse & Spectro
@labo_lcs

A collaboration between @UH_RimerGroup and @labo_lcs presented at #ACSSpring2021 @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS @CNRS_Normandie @normandieuniv twitter.com/UH_Rimer…

Expand reply reply retweet retweet favorite favorite
Catalyse & Spectro
14 Apr
Catalyse & Spectro
@labo_lcs

🆕Thin Functional #Zeolite Layer Supported on Infrared Resonant Nano‐Antennas for the Detection of #Benzene Traces ▶️ doi.org/10.1002/adfm… @INC_CNRS @ENSICAEN @Universite_Caen @Reseau_Carnot @Carnot_ESP @CNRS @CNRS_Normandie @normandieuniv pic.twitter.com/90vm…

Expand reply reply retweet retweet favorite favorite
Institut Carnot Energie & Systèmes de Propulsion
14 Apr
Institut Carnot Energie & Systèmes de Propulsion
@Carnot_ESP

💡FROID: un projet de R&D collaborative soutenu et financé par le @Carnot_ESP et réalisé en partenariat par le #CERTAM et le #CEVAA sur un banc pour les moteurs électriques de demain ▶️carnot-esp.fr/froid/ @Reseau_Carnot @Groupe6NAPSE #Recherche #RetD #innovation #industrie pic.twitter.com/crSD…

Retweeted by Catalyse & SpectroRetweeted by Catalyse & Spectro
Expand reply reply retweet retweet favorite favorite
Follow @labo_lcs

Legal Notice

The LCS website is made available under the terms of the Creative Commons Attribution 4.0 International license.

Click here for full details!

Site map

  • Home
  • Work at the lab
  • Who are we?
    • History
    • Lab activities and organization
      • Laboratory members
      • Technical platforms
        • VISIO platform
        • Solid State NMR platform
          (NMR center of Caen-Normandy)
        • Synthesis & Characterization Platform
        • Catalytic Tests & Chemisorption Platform
      • Health and Safety
  • News
    • Events
      • SPECTROCAT workshop
    • Job opportunities at LCS
  • Research at LCS
    • Collaborations
    • Catalysis for energy, chemistry and environmental protection
    • Porous materials: from preparation to applications
    • Spectrocat team
    • Spectroscopic tools and methodologies
    • Zeolite team
    • ANR projects
      • Microgreen
      • EcoHdoc
      • BioSyngOp
    • European Projects
  • Research at LCS
  • Industrial partnership
    • LCS Valoris, the bridge between research and business
    • ESP Carnot Institute : Energy and Propulsion Systems
    • Industrial partners and collaborations
  • Education
    • Master of Chemistry: Course CED2 (Catalysis, Environment and Sustainable Development)
    • Summer school “Spectrocat”
      • Summer school Spectrocat 2013 – extranet
      • SPECTROCAT Summer School 2016
      • Summer school SpectroCat 2013
    • PhD
  • The doctoral and postdocs blog
  • Bibliography
  • Contact us!

Tags

adsorbents best poster gecat 2018 Carnot CNRT Conference CRISMAT Diffraction ESP Hiring IZA IZC membranes Metal Organic Framework metal oxides mof MT180 NOx Operando IR spectroscopy PRISME Propyne Publish reaction SCF Science magazine Spectrocat spectroscopy storage/reduction suspensions Thesis WEB Workshop zeolites Catalysis Catalyst distinctions internship job photocatalysis zeolites

Publications récentes

  • Removal of chlorinated volatile organic compounds onto natural and Cu-modified zeolite: The role of chemical surface characteristics in the adsorption mechanism
  • Increasing the porosity of zeolites
  • Facile and fast determination of Si/Al ratio of zeolites using FTIR spectroscopy technique
  • Control the position of framework defects in zeolites by changing the symmetry of organic structure directing agents

Collection LCS HAL

Copyright 2020 - Laboratoire Catalyse & Spectrochimie - Directeur de publication : Guillaume CLET | Creative Commons 4.0 International
  • Français
Laboratoire Catalyse et Spectrochimie
Login

Lost your password?

Reset Password

Log in