Catégories :


From nanomaterial to active site reactivity

Our team is developing and investigating heterogeneous catalysts for the selective valorization of carbon dioxide (dry reforming [1,2], cyclic carbonates [3]), biomass (lignin) and plastic waste (polystyrene, polyethylene [4]) for the production of molecules of interest. Another emerging area of research concerns the vectorization of dihydrogen via the formation of ammonia or the exploitation of hydrogen-carrying organic liquids.

We have strong expertise in acid-base [5,6] and metal [1, 2, 7] catalysis. Our approach to the synthesis of catalytic materials is rational, based on our expertise in surface engineering and the tools we have for characterizing active sites. Recently, we have shown that we can achieve a high degree of control over the metal dispersion by changing the method of preparation of the porous oxide supports [1] or not [8], or the method of introduction of the metals (use of hydroxyapatites [9], MOFs [2], etc.). We also have to our credit various examples of synthesis of materials, sometimes composites [7], in which it is possible to compartmentalize or not the active phases in order to optimize cascade processes [3].

In the majority of cases, we use non-noble metals or, alternatively, bimetallic systems for which we have in-house expertise to monitor the properties under real or close conditions (X-ray absorption [10] and X-ray diffraction) and to characterize the colloidal dispersions that can be at stake in these systems. The laboratory has recently reinvested its skills in the synthesis of metal carbides, as substitutes for noble metals, for the valorization of biomass. We are also considering the use of materials [11] or metals recovered from depollution processes to manufacture catalysts.


  • Frédéric Averseng
  • Juliette Blanchard
  • Souhir Boujday
  • Xavier Carrier
  • Guylene Costentin
  • Laurent Delannoy
  • Clément Guibert
  • Claude Jolivalt
  • Guillaume Laugel
  • Franck Launay
  • Yannick Millot
  • Thomas Onfroy
  • Helene Pernot
  • Julien Reboul
  • Cyril Thomas
  • Axel Wilson

Platforms and equipment

  • Synthesis robots
  • Microwave synthesis
  • Physisorption (N2, CO2, Ar, Kr, hysteresis loop scanning) /chemisorption (H2, CO, O2, NH3, CO2, NOx), programmed temperature reduction (H2-TPR)
  • FTIR coupled chemisorption of probe molecules (CO, NH3, NO, etc)
  • TGA-MS
  • Dynamic light scattering (DLS)
  • Zeta potential measurement (through electrophoretic mobility or streaming potential/current)
  • Photoluminescence
  • Continuous Wave (CW) X-Band EPR
  • FTIR, Raman (in-situ) for structural characterization and surface properties
  • Catalytic tests for acid-base characterization
  • Autoclaves for reactions under pressure
  • HPLC and GC/MS
  • Fixed bed micro-reactors at atmospheric pressure or under pressure
  • FCMat technical platformSolid state NMR (500 and 700 MHz with probes (Cryo-probe MAS (He), High speed (1.3 mm) Low-gamma (29Si-87Sr), double and triple resonances) + liquid spectrometer (500 MHz) with, in particular, a Prodigy probe (N2).
  • XPS
  • Electron microscopies
  • XEUSS device (Xenocs) for small/wide angle X-ray Scattering (SAXS/WAXS), equipped with multiple sample environments
  • D8 Discover (Bruker) equipped with an XRK900 operando chamber (Anton-Paar)


[1] O. Daoura et al., Applied Catalysis, B: Environmental 2021, 280, 119417 ; O. Daoura et al., ACS Appl. Nano Mater. 2022, 5, 18048.

[2] L. Karam et al., ChemCatChem 2019, 12, 373; L. Karam et al., Molecules 2019, 24, 4107.

[3] C. Carvalho Rocha et al., Journal of Catalysis 2016, 333, 29; M. Balas et al., Frontiers in Chemistry 2021, 9, 765108.

[4] S. Armenise et al., Journal of Analytical and Applied Pyrolysis 2021, 158, 105265.

[5] M. Ben Osman et al., ChemCatChem 2019, 11, 1765.

[6] L. Lin et al., Catalysis Science & Technology 2019, 9, 6072.

[7] O. Ben Moussa et al., ACS Catal. 2018, 8, 6071.

[8] J.T. Miller et al., Journal of Physical Chemistry C 2021, 125, 25094.

[9] C. Reynaud et al., Inorganic Chemistry 2022, 61, 3296.

[10] R. Dalebout et al., ACS Catalysis 2022, 12, 6628 ; C. Chizallet et al. J. Catal. 2021, 394, 157.

[11] L. Karam et al., Mater. Adv. 2021, 2, 2750.

Labs :