M
Mickaël Rivallan
Researcher at University of Caen Lower Normandy
Publications - 23
Citations - 773
Mickaël Rivallan is an academic researcher from University of Caen Lower Normandy. The author has contributed to research in topics: Catalysis & Adsorption. The author has an hindex of 14, co-authored 18 publications receiving 705 citations. Previous affiliations of Mickaël Rivallan include University of Turin & University of Rennes.
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Structure and nuclearity of active sites in Fe-zeolites: comparison with iron sites in enzymes and homogeneous catalysts
Adriano Zecchina,Mickaël Rivallan,Mickaël Rivallan,Gloria Berlier,Carlo Lamberti,Gabriele Ricchiardi +5 more
TL;DR: It is concluded that Fe-ZSM-5 and Fe-silicalite are not the ideal samples conceived before and that many types of species are present, some active and some other silent from adsorptive and catalytic point of view.
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Adsorption and reactivity of nitrogen oxides (NO2, NO, N2O) on Fe-zeolites
TL;DR: In this article, the authors used FTIR spectroscopy of adsorbed N2O, NO, and NO2 to investigate the structure and environment of the iron active species of the Fe-MFI catalysts before and after atomic oxygen deposition.
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Effective bulk and surface temperatures of the catalyst bed of FT-IR cells used for in situ and operando studies
Haoguang Li,Mickaël Rivallan,Frédéric Thibault-Starzyk,Arnaud Travert,Frederic Meunier,Frederic Meunier +5 more
TL;DR: This work emphasises that the effective bed temperature in spectroscopic cells can be significantly different from that given by measure thermocouples, even when located in the vicinity of the sample, but that the calibration curves derived from rate measurements can be used to overcome this problem.
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Platinum sintering on H-ZSM-5 followed by chemometrics of CO adsorption and 2D pressure-jump IR spectroscopy of adsorbed species.
Mickaël Rivallan,Etienne Seguin,Sébastien Thomas,Muriel Lepage,Nobuyuki Takagi,Hirohito Hirata,Frédéric Thibault-Starzyk +6 more
TL;DR: CO chemisorption confirms the TEM observations that the Pt particles greatly sinter with around three times lower dispersion after air treatment, whereas the surface and pores of the zeolite matrix remain stable and encapsulation of Pt into plugged pores can be neglected.
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Characterization of Fe sites in Fe-zeolites by FTIR spectroscopy of adsorbed NO: are the spectra obtained in static vacuum and dynamic flow set-ups comparable?
TL;DR: Comparisons of IR spectra of adsorbed NO on two catalyst systems recorded in a flow-through cell and static cell show spectral differences that could have a thermodynamic origin and be related to different adsorption enthalpies of mono- and di-nitrosyl complexes of the two Fe(2+) families.