Laboratoire de réactivité de surface

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  • Communication dans un congrès

Unveiling the M−F/OH bonding and anionic ordering in Mg, Zn, Cu−based hydroxyfluorides for the design of basic catalysts

Helies Boumali, Matthew R. Suchomel, Étienne Durand, Thomas Onfroy, Guillaume Laugel, Hélène Pernot

Functional inorganic materials, mostly oxides but also fluorides, sulfides, or nitrides has led to the development of many modern technologies. The usual way to improve the chemical and physical properties of these materials was the cationic substitution in order to tune the chemical bonding. These…

15ème Journées Thématiques de l'Association Bordelaise de Cristallographie - JABC 2023, Association Bordelaise de Cristallographie, Jun 2023, Bordeaux, France. ⟨hal-04628119⟩

  • 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⟩

  • Chapitre d'ouvrage

Mechanisms of Adsorption of Short Peptides on Metal and Oxide Surfaces

Vincent Humblot, Jessem Landoulsi, Claire-Marie Pradier

Biointerfaces, involving peptides or proteins and solid surfaces, have been investigated with the aim of controlling the behavior/reactivity of inorganic materials in biological environments. This chapter presents a comprehensive overview of the basic aspects governing the interaction of short…

Peptide Materials: From Nanostructures to Applications, Wiley Online Library, pp.289-312, 2013, ⟨10.1002/9781118592403.ch11⟩. ⟨hal-00958136⟩

  • Article dans une revue

Assessment of the capability of Fe and Al modified BEA zeolites to promote advanced oxidation processes in aqueous phase

Erick Bandala, Renata Sadek, Jacek Gurgul, Kazimierz Łątka, Małgorzata Zimowska, Laetitia Valentin, Oscar Rodriguez-Narvaez, Stanislaw Dzwigaj

Iron-containing zeolites were prepared using two-step postsynthesis and wet impregnation methods and characterized using conventional techniques. The materials were tested for production of hydroxyl radicals using N,N-dimethyl-p-nitrosoaniline (pNDA) as radical scavenger and discoloration of Congo…

Chemical Engineering Journal, 2021, 409, pp.127379. ⟨10.1016/j.cej.2020.127379⟩. ⟨hal-03993570⟩

  • Communication dans un congrès

Heterogeneous Fenton-like reactions in natural soils and sediments at neutral pH with O2 as oxidant

Elora Bourbon, Frederic Averseng, Thierry Allard, Pierre Le Pape, Sylvie Nélieu, Xavier Carrier, Guillaume Morin, Elodie Guigon, Fulvia Baratelli, Sophie Ayrault

Heterogeneous Fenton-like processes using O2 as oxidant and iron(II) minerals as substrate is a rapidly growing research field with important implications especially for in-situ organic pollutant degradation in natural media. These reactions can be conducted at neutral pH and several minerals are…

Goldschmidt 2023, Jul 2023, Lyon, France. ⟨hal-04390051⟩

  • 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⟩

  • Article dans une revue

A comparative in situ TEM and UV-visible spectroscopic study of the thermal evolution of Ag species dispersed on Al2O3 and NaX zeolite supports

Elie Sayah, Dalil Brouri, Pascale Massiani

The oxidation states and dispersion of silver supported on alumina and faujasite were monitored by TEM, TPR and in situ UV-visible spectroscopy along the steps of thermal dehydration, then oxidation and finally reduction of the freshly prepared materials. An original transmission electron…

Catalysis Today, 2013, 218-219, pp.10-17. ⟨10.1016/j.cattod.2013.06.003⟩. ⟨hal-00958109⟩

  • Article dans une revue

Ethanol Conversion into 1,3-Butadiene by Lebedev Method over MTaSiBEA Zeolites (M= Ag, Cu, Zn)

Pavlo I. Kyriienko, Olga V. Larina, Sergiy O. Soloviev, Svitlana M. Orlyk, Christophe Calers, Stanislaw Dzwigaj

Tantalum-containing SiBEA zeolite with isolated framework mononuclear Ta(V) doped with Ag, Cu and Zn were prepared and characterized by XRD, XPS, DR UV-VIS and FTIR (with pyridine, 2,6-di-tert-butylpyridine, pyrrole and deuterated chloroform). The conversion of ethanol as renewable raw material…

ACS Sustainable Chemistry & Engineering, 2017, ⟨10.1021/acssuschemeng.6b01728⟩. ⟨hal-01437547⟩

  • Article dans une revue

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

The remarkable effect of the preparation procedure on the catalytic activity of CoBEA zeolites in the Fischer-Tropsch Synthesis

Karolina A. Chalupka, Sandra Casale, Ewa Zurawicz, Jacek Rynkowski, Stanislaw Dzwigaj

This work deals with the investigation of the influence of the preparation procedure and Co content on the activity of CoBEA zeolite in Fischer – Tropsch synthesis. For this purpose the Co-containing zeolites were prepared by a conventional wet impregnation (CoxAlBEA series) and a two-step…

Microporous and Mesoporous Materials, 2015, 211, pp.9-18. ⟨10.1016/j.micromeso.2015.02.024⟩. ⟨hal-01130202⟩