• Article dans une revue

Enhancing low-temperature activity and durability of Pd-based diesel oxidation catalysts using ZrO2 supports

Mi-Young Kim, Eleni A. Kyriakidou, Jae-Soon Choi, Todd J. Toops, Andrew J. Binder, Cyril Thomas, James E. Parks, Viviane Schwartz, Jihua Chen, Dale K. Hensley

We investigated the impact of ZrO2 on the performance of palladium-based oxidation catalysts with respect to low-temperature activity, hydrothermal stability, and sulfur tolerance. Pd supported on ZrO2 and SiO2 were synthesized for a comparative study. Additionally, in an attempt to maximize the…

Applied Catalysis B: Environmental, 2016, 187, pp.181-194. ⟨10.1016/j.apcatb.2016.01.023⟩. ⟨hal-01264140⟩

• Article dans une revue

Enhanced activity of NiZrBEA catalyst for upgrading of biomass pyrolysis vapors to H2-rich gas

Jacek Grams, Robert Ryczkowski, Renata Sadek, Karolina Chałupka-Śpiewak, Sandra Casale, Stanislaw Dzwigaj

The main objective of these studies was development of competitive catalyst for the upgrading of biomass pyrolysis vapors to H2-rich gas. The performed experiments were devoted to determination of the effect of incorporation of zirconium into the structure of BEA zeolite on the performance of NiBEA…

International Journal of Hydrogen Energy, 2022, 47 (82), pp.34909-34923. ⟨10.1016/j.ijhydene.2022.08.082⟩. ⟨hal-03991604⟩

• Article dans une revue

Electron Transfer at the Metal Oxide/Electrolyte Interface: A Simple Methodology for Quantitative Kinetics Evaluation

Iban Azcarate, Cyrille Costentin, Christophe Méthivier, Christel Laberty-Robert, Alexis Grimaud

While quantitative models exist for measuring rate constants for electron exchange at the surface of semiconductors to or from redox couples in solution, their use is very limited for studying transition metal oxide electrodes. Taking advantage of the possibility of tuning the doping level of WO 3…

Journal of Physical Chemistry C, 2018, 122 (24), pp.12761-12770. ⟨10.1021/acs.jpcc.8b02289⟩. ⟨hal-02388362⟩

• Article dans une revue

The state of BEA zeolite supported nickel catalysts in CO2 methanation reaction

Wojciech Gac, Witold Zawadzki, Grzegorz Słowik, Marcin Kuśmierz, Stanislaw Dzwigaj

Two model nickel catalysts for CO2 methanation reaction were prepared by the impregnation method using unmodified and dealuminated BEA-type zeolite supports, denoted NiHAlBEA and NiSiBEA. Transmission electron microscopy (TEM) and X-ray diffraction studies evidenced formation of metallic nickel…

Applied Surface Science, 2021, 564, pp.150421. ⟨10.1016/j.apsusc.2021.150421⟩. ⟨hal-03360250⟩

• Article dans une revue

Experimental observation of ohmic impedance

Chen You, Arthur Dizon, Ming Gao, Vincent Vivier, Mark Orazem

Electrochimica Acta, 2022, 413, pp.140177. ⟨10.1016/j.electacta.2022.140177⟩. ⟨hal-03868701⟩

• Poster de conférence

Bimetallic Fe-Ni/SiO2 catalysts for furfural hydrogenation: respective roles of Fe and Ni

Dichao Shi, Jean-Sébastien Girardon, Anne Constant, Anne-Sophie Mamede, Robert Wojcieszak, Paul Sébastien, E. Marceau, Anne-Félicie Lamic-Humblot, Maya Marinova, Valérie Briois, Lorenzo Stievano

ISGC 2019, International Symposium on Green Chemistry, May 2019, La Rochelle, France. ⟨hal-03515379⟩

• Article dans une revue

How the acido-basic properties of Mg silicates and clays govern the catalytic mechanism of transesterification reactions

Longfei Lin, Elisa Silva Gomes, François Payan, Maguy Jaber, Jean-Marc Krafft, Guillaume Laugel, Hélène Lauron-Pernot

Choosing acido-basic properties of magnesium silicates to tune the transesterification mechanism in the liquid phase.

Catalysis Science & Technology, 2019, 9 (21), pp.6072-6084. ⟨10.1039/C9CY01475F⟩. ⟨hal-03990037⟩

• Thèse

ZnFe2O4 pour des applications en photocatalyse hétérogène dans le visible, ZnFe2O4 for heterogeneous photocatalysis applications in the visible

Aya Jezzini

Ce travail de thèse concerne la dépollution des eaux en utilisant des mélanges très enrichis en ferrite de zinc et activés par de la lumière visible. Nos solides ont été testés pour deux réactions : 1) l’oxydation et décomposition d’un antibiotique, l’amoxyciline ou AMX très utilisée en médecine…, Our work is devoted to the water depollution by photocatalysis with mixtures enriched in Zn ferrites and under visible light. It concerns 1) Amoxicilin (AMX), as one of the pharmaceutical polluting molecule that can be found in water and may have a toxic effect. 2) Bacterium Staphylococcus…

Matériaux. Sorbonne Université; Université Libanaise, 2020. Français. ⟨NNT : 2020SORUS238⟩. ⟨tel-03462099⟩

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Identification of iron species in FeSiBEA by DR UV-vis, XPS and Mössbauer spectroscopy: Influence of Fe content

J. Gurgul, K. Łątka, I. Hnat, J. Rynkowski, S. Dzwigaj

The nature of iron in FeSiBEA zeolite was identified using DR UV-vis, XPS and Mössbauer spectroscopy. Various FexSiBEA zeolites (x = 3.8, 8.2 and 15 wt.%) were prepared by a two-step post synthesis method, which consisted in the creation of vacant T-atom sites by dealumination of tetraethylammonium…

Microporous and Mesoporous Materials, 2013, 168, pp.1-6. ⟨10.1016/j.micromeso.2012.09.015⟩. ⟨hal-00812092⟩

• Article dans une revue

Silica-Supported Au-Ag Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Christophe Calers, Jean-Jacques Gallet, Fabrice Bournel, Krijn P. de Jong, Catherine Louis, Petra E. de Jongh

Gold and silver are miscible over the entire composition range, and form an attractive combination for fundamental studies on bimetallic catalysts. Au–Ag catalysts have shown synergistic effects for different oxidation and liquid-phase hydrogenation reactions, but have rarely been studied for gas-…

ChemCatChem, 2017, 9 (12), pp.2418-2425. ⟨10.1002/cctc.201700127⟩. ⟨hal-01547372⟩