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Presentation

L’IRSAMC (The Institute of Research on Complex Atomic and Molecular Systems) is a federation of four laboratories (LCAR, LCPQ, LPCNO, LPT), in physics and fundamental chemistry whose research activities are supported both by the Université Paul Sabatier, the CNRS and INSA

Publications of 4 research laboratories

  • Hal-LCAR. - Laboratory Collisions Clusters Reactivity, from 1990 until todays
  • Hal-LCPQ. - Quantum Chemistry and Physics Laboratory, from 2007 until todays
  • Hal-LPCNO. - Physics and Chemistry of Nano Objects Laboratory, from 2006 until todays
  • Hal-LPT.- Theoretical Physics Laboratory, from 2003 until todays

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[hal-02882916] Ultra-Stable Magnetic Nanoparticles Encapsulated in Carbon for Magnetically Induced Catalysis  (04/07/2020)   Moins
Magnetically induced catalysis using magnetic nanoparticles (MagNPs) as heating agents is a new efficient method to perform reactions at high temperatures. However, the main limitation is the lack of stability of the catalysts operating in such harsh conditions. Normally, above 500 ºC, significant sintering of MagNPs takes place. Here we present encapsulated magnetic FeCo and Co NPs in carbon (Co@C and FeCo@C) as an ultra-stable heating material suitable for high temperature magnetic catalysis. Indeed, FeCo@C or a mixture of FeCo@C:Co@C (2:1) decorated with Ni or Pt-Sn showed good stability in terms of temperature and catalytic performances. In addition, consistent conversions and selectivities regarding conventional heating were observed for CO2 methanation (Sabatier Reaction), propane dehydrogenation (PDH) and propane dry reforming (PDR). Thus, the encapsulation of MagNPs in carbon constitutes a major advance in the development of stable catalysts for high temperature magnetically induced catalysis.

[hal-02570895] Spin crossover in Fe(triazole)–Pt nanoparticle self-assembly structured at the sub-5 nm scale  (03/07/2020)   Plus
[hal-02881940] Fragmentation dynamics of Ar4He1000 upon electron impact ionization: competition between ion ejection and trapping  (02/07/2020)   Plus
[tel-02880011] Etude multi-échelle de l'activation de réactions catalytiques par chauffage magnétique pour le stockage des énergies renouvelables  (25/06/2020)   Plus
[tel-02879948] Study of the optoelectronic properties of atomically thin WSe2  (25/06/2020)   Plus

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