• Article dans une revue

Ce- and Y-Modified Double-Layered Hydroxides as Catalysts for Dry Reforming of Methane: On the Effect of Yttrium Promotion

Katarzyna Świrk, Magnus Rønning, Monika Motak, Patricia Beaunier, Patrick da Costa, Teresa Grzybek

Ce- and Y-promoted double-layered hydroxides were synthesized and tested in dry reforming of methane (CH4/CO2 = 1/1). The characterization of the catalysts was performed using X-ray fluorescence (XRF), X-ray diffraction (XRD), N2 sorption, temperature-programmed reduction in H2 (TPR-H2),…

Catalysts, 2019, 9 (1), pp.56. ⟨10.3390/catal9010056⟩. ⟨hal-02057457⟩

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A Rotaxane Scaffold Bearing Multiple Redox Centers: Synthesis, Surface Modification and Electrochemical Properties

Marie Steffenhagen, Alina Latus, Thi Minh Nguyet Trinh, Iwona Nierengarten, Ivan T. Lucas, Suzanne Joiret, Jessem Landoulsi, Béatrice Delavaux-Nicot, Jean-François Nierengarten, Emmanuel Maisonhaute

A rotaxane scaffold incorporating two dithiolane anchoring units for the modification of gold surfaces has been functionalized with multiple copies of a redox unit, namely ferrocene. Surface modification has been first assessed at the single molecule level by atomic force microscopy (AFM) and…

Chemistry - A European Journal, 2018, 24 (7), pp.1701-1708. ⟨10.1002/chem.201705245⟩. ⟨hal-01722802⟩

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Dispersion assessment of H3PMo12O40 supported on TiO2 through in situ IR upon pyridine adsorption

Alixandre Magerat, Laetitia Valentin, Alexandre Vimont, Sophie Hermans, Eric M Gaigneaux, Josefine Schnee

Keggin heteropolyacids (HPAs) are powerful catalytic materials because of their particularly high acid strength. Dispersing them on a support is a commonly adopted strategy to overcome their low specific surface area and increase their recoverability. In this regard, their dispersion needs to be…

Applied Catalysis A: General, 2026, 718, pp.120892. ⟨10.1016/j.apcata.2026.120892⟩. ⟨hal-05572166⟩

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One-pot aqueous-phase xylose upgrading on Zr-containing BEA zeolites

Elise M. Albuquerque, Priscilla N. Paulino, Renata Sadek, Laetitia Valentin, Jean-Marc Krafft, Stanislaw Dzwigaj, Marco A. Fraga

Applied Catalysis A: General, 2020, 604, pp.117766 -. ⟨10.1016/j.apcata.2020.117766⟩. ⟨hal-03491635⟩

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Progress on electrochemical and photoelectrochemical urea and ammonia conversion from urine for sustainable wastewater treatment

Sophia Akkari, Carlos M. Sánchez-Sánchez, Guillaume Hopsort, Karine Groenen Serrano, Karine Loubière, Théodore Tzedakis, Raihana Benyahia, Lamia Rebiai, Stéphane Bastide, Christine Cachet-Vivier, Vincent Vivier, Melissa Lopez-Viveros, Sam Azimi

The valorization of urine through the electro-oxidation of urea offers a promising alternative for industrial wastewater treatment plants. This operation, implemented at room temperature, allows, in addition to the depolluting action, the generation of hydrogen at the cathode. Using inexpensive…

Applied Catalysis B: Environmental, 2025, 362, pp.124718. ⟨10.1016/j.apcatb.2024.124718⟩. ⟨hal-04749007v2⟩

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Ordered mesoporous “one-pot” synthesized Ni-Mg(Ca)-Al2O3 as effective and remarkably stable catalysts for combined steam and dry reforming of methane (CSDRM)

Karam Jabbour, Pascale Massiani, Anne Davidson, Sandra Casale, Nissrine El Hassan

Two series of Nix% (x: 5–10 wt%) and Ni5%M5% (M: Ca or Mg) containing mesoporous Al2O3 catalysts were prepared by “one-pot” synthesis following an evaporation-induced self-assembly (EISA) method. After reduction, the catalysts showed very high Ni dispersion within the structured oxide matrix giving…

Applied Catalysis B: Environmental, 2017, 201, pp.527-542. ⟨10.1016/j.apcatb.2016.08.009⟩. ⟨hal-01368456⟩

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Cobalt-containing BEA zeolite for catalytic combustion of toluene

Anna Rokicińska, Marek Drozdek, Barbara Dudek, Barbara Gil, Piotr Michorczyk, Dalil Brouri, Stanislaw Dzwigaj, Piotr Kuśtrowski

Co-containing HAlBEA zeolite was obtained by conventional wet impregnation of HAlBEA zeolite with an aqueous Co(NO3)2.6 H2O solution, whereas Co-containing SiBEA zeolites were prepared by a two-step post-synthesis method. This approach consists of, in the first step, dealumination of parent BEA…

Applied Catalysis B: Environmental, 2017, 212, pp.59 - 67. ⟨10.1016/j.apcatb.2017.04.067⟩. ⟨hal-01517429⟩

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Experimental evidence of NO SCR mechanism in the presence of the BEA zeolite with framework and extra-framework cobalt species

Paweł Boroń, Lucjan Chmielarz, Barbara Gil, Bartosz Marszałek, Stanislaw Dzwigaj

Temperature-programmed desorption (TPD), temperature-programmed surface reaction (TPSR) and stop flow-TPD techniques as well as FT-IR spectroscopy of pre-adsorbed NH3 and NO are applied to characterize active sites present in Co-containing BEA zeolites. Cobalt is introduced into BEA zeolite by…

Applied Catalysis B: Environmental, 2016, 198, pp.457-470. ⟨10.1016/j.apcatb.2016.06.012⟩. ⟨hal-01329568⟩

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Remarkable effect of postsynthesis preparation procedures on catalytic properties of Ni-loaded BEA zeolites in hydrodechlorination of 1,2-dichloroethane

A. Śrębowata, R. Baran, D. Łomot, D. Lisovytskiy, T. Onfroy, S. Dzwigaj

Ni2.0SiBEA and Ni2.0HAlBEA zeolites were prepared by two different procedures: (i) a two-step postsynthesis method that consist of (1) creation of vacant T-atom sites by dealumination of HAlBEA (Si/Al = 17) with nitric acid and then (2) impregnation of as resulting SiBEA (Si/Al > 1300) with…

Applied Catalysis B: Environmental, 2014, 147, pp.208-220. ⟨10.1016/j.apcatb.2013.08.040⟩. ⟨hal-00960654⟩

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Polyol-Made Luminescent and Superparamagnetic β-NaY0.8Eu0.2F4@γ-Fe2O3 Core-Satellites Nanoparticles for Dual Magnetic Resonance and Optical Imaging

Lotfi Ben Tahar, Darine Abi Haidar, Michel Boissiere, Walid Mnasri, Lotfi Ben Tahar, Patricia Beaunier, Michel Boissière, Olivier Sandre, Souad Ammar

Red luminescent and superparamagnetic β-NaY0.8Eu0.2F4@γ-Fe2O3 nanoparticles, made of a 70 nm-sized β-NaY0.8Eu0.2F4 single crystal core decorated by a 10 nm-thick polycrystalline and discontinuous γ-Fe2O3 shell, have been synthesized by the polyol process. Functionalized with citrate ligands they…

Nanomaterials, 2020, 10 (2), pp.393. ⟨10.3390/nano10020393⟩. ⟨hal-02490053v2⟩