• Article dans une revue

Influence of the nature and environment of vanadium in VSiBEA zeolite on selective catalytic reduction of NO with ammonia

R. Baran, T. Onfroy, T. Grzybek, S. Dzwigaj

The influence of the nature and environmental of vanadium on the catalytic properties of VxSiBEA zeolite in selective catalytic reduction of NO with ammonia is investigated. Catalysts containing 1-7.5 wt.% of vanadium were prepared by a two-step postsynthesis method which consists, in the first…

Applied Catalysis B: Environmental, 2013, 136-137, pp.186-192. ⟨10.1016/j.apcatb.2013.02.014⟩. ⟨hal-00812157⟩

• Article dans une revue

Comprehensive study on the effect of magnesium loading over Nickel-ordered mesoporous alumina for dry reforming of methane

Leila Karam, Marco Armandi, Sandra Casale, Vanessa El Khoury, Barbara Bonelli, Pascale Massiani, Nissrine El Hassan

A comprehensive study of the effect of Mg loading on the performances in Dry Reforming of Methane of a series of mesoporous Ni 6-Mg x-Al 2 O 3 catalysts containing 6 wt% Ni and 0 to 26 wt% Mg is presented. Complementary characterizations by N 2 sorption, XRD, SEM/TEM, FT-IR, H 2-TPR and H 2-TPD of…

Energy Conversion and Management, 2020, 225, ⟨10.1016/j.enconman.2020.113470⟩. ⟨hal-03053832⟩

• Article dans une revue

Au-Ru/TiO2 prepared by deposition-precipitation with urea: Relevant synthesis parameters to obtain bimetallic particles

Lina Calzada, Catherine Louis, Chang Wan Han, Volkan Ortalan, Rodolfo Zanella

Although Au and Ru are not miscible in the bulk, the paper focusses on the attempts to prepare bimetallic Au-Ru/TiO2 catalysts by deposition-precipitation with urea (co-DPU and sequential DPU, Au then Ru and vice versa). Gold was found already reduced after the preparations of co-DPU and Ru then Au…

Applied Catalysis B: Environmental, 2020, 264, pp.118503. ⟨10.1016/j.apcatb.2019.118503⟩. ⟨hal-04025207⟩

• Article dans une revue

Unraveling the Direct Decomposition of NO x over Keggin Heteropolyacids and Their Deactivation Using a Combination of Gas-IR/MS and In Situ DRIFT Spectroscopy

Josefine Schnee, Laurent Delannoy, Guylène Costentin, Cyril Thomas

Keggin heteropolyacids (HPAs) have been known to be efficient NOx absorbers for many years, and to decompose a significant fraction of the NOx species pre-absorbed at 100-150 °C into harmless N2 and O2 upon rapid heating to 450 °C. However, this capability of Keggin HPAs to directly decompose NOx…

Journal of Physical Chemistry C, In press, ⟨10.1021/acs.jpcc.0c05945⟩. ⟨hal-02960399⟩

• Article dans une revue

Two- and Four-Electrode Configurations for Contactless Reinforced Concrete Corrosion Monitoring

B. Díaz, X.R. Nóvoa, C. Pérez, A. Pintos, Vincent Vivier

The paper addresses the need for a fast and reliable method for field monitoring reinforced concrete structures. A proof of concept is presented where a noncontact procedure provides quantitative information on the concrete resistivity and reinforcement corrosion rate. A Wenner-type probe is…

Corrosion, 2022, 79 (4), pp.419-425. ⟨10.5006/4200⟩. ⟨hal-04294196⟩

• Article dans une revue

Urea electro-oxidation byproducts impact on NiO/NiOOH anode performance studied by operando electrochemical impedance spectroscopy

Sophia Akkari, Vincent Vivier, Carlos M Sánchez-Sánchez

With significant quantities of urea (CO(NH2)2) being worldwide produced and its presence at high concentration in urine, simultaneous treatment of urea effluents and hydrogen production by paired electrolysis represents a very attractive approach in circular economy. Urea electro-oxidation on Ni-…

Electrochimica Acta, 2024, 474, pp.143526. ⟨10.1016/j.electacta.2023.143526⟩. ⟨hal-04298004⟩

• Article dans une revue

Optimization of ammonium fluoride route to hierarchical ZSM-5 zeolites

T. Onfroy, Z. Qin, S. Casale, V. Valtchev

Preparation of hierarchical zeolites via a chemical etching is a hot topic as it strongly improves microporous material's diffusive properties and thus their catalytic activity. However, an issue that is often neglected is the softening the post-treatment condition. Herein we we report the…

Microporous and Mesoporous Materials, 2023, 362, pp.112760. ⟨10.1016/j.micromeso.2023.112760⟩. ⟨hal-04229106⟩

• Communication dans un congrès

Physicochemical characterizations of ionic liquid-molecular solvents mixtures

Nesrine Chaabene, Kieu Ngo, Mireille Turmine

ISSP 2018, Jul 2018, Tours, France. ⟨hal-03977348⟩

• Article dans une revue

Characterization of soil particles by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR) and transmission electron microscopy (TEM)

Karine Flogeac, Emmanuel Guillon, Michel Aplincourt, E. Marceau, Lorenzo Stievano, Patricia Beaunier, Yves-Michel Frapart

Agronomy for Sustainable Development, 2005, 25 (3), pp.345-353. ⟨10.1051/agro:2005037⟩. ⟨hal-03032199⟩

• Article dans une revue

Intermittent dynamics of bubble dissolution due to interfacial growth of fat crystals

Irma Liascukiene, Gabriel Amselem, Jessem Landoulsi, Deniz Gunes, Charles Baroud

Foams are inherently unstable objects, that age and disappear over time. The main cause of foam aging is Ostwald ripening: smaller air bubbles within the foam empty their gas content into larger ones. One strategy to counter Ostwald ripening consists in creating armored bubbles, where solid…

Soft Matter, 2021, 17 (44), pp.10042-10052. ⟨10.1039/D1SM00902H⟩. ⟨hal-04025234⟩