• Article dans une revue

Controlled preparation of CoPdSiBEA zeolite catalysts for selective catalytic reduction of NO with methane and their characterisation by XRD, DR UV-vis, TPR, XPS

Ana Rodrigues, Patrick da Costa, C. Methivier, S. Dzwigaj

The Pd0.15SiBEA and CoxPd0.15SiBEA zeolites (where x= 1.0 and 3.0 wt.% Co) are prepared by a two-step postsynthesis method which allows to control the introduction of palladium and cobalt into zeolite and thus to obtain catalysts with specific bimetallic Pd and Co sites. The effect of Co content on…

Catalysis Today, 2011, 176, pp.72-76. ⟨10.1016/j.cattod.2011.03.013⟩. ⟨hal-00666188⟩

• Article dans une revue

Physico-chemical properties of FeAlBEA and FeSiBEA zeolites and their catalytic activity in the SCR of NO with ethanol or methane

Janusz Janas, Stanislaw Dzwigaj

FeAlBEA and FeSiBEA zeolites are prepared by a conventional ion exchange and a two-step postsynthesis method, respectively. Their physico-chemical properties are investigated by XRD, FTIR, and diffuse reflectance UV-vis. For FeAlBEA zeolite, framework tetrahedral Fe(III), extra-framework octahedral…

Catalysis Today, 2011, 176 (1), pp.272-276. ⟨10.1016/j.cattod.2010.12.012⟩. ⟨hal-00666884⟩

• Article dans une revue

Synthesis, characterization and catalytic activity of meso-niobium phosphate in the oxidation of benzyl alcohols

Michèle C. Reis, Suellen D.T. Barros, Elizabeth R. Lachter, Rosane A.S. San Gil, Jhonny H. Flores, Maria I. Pais da Silva, Thomas Onfroy

In this work mesoporous niobium phosphate was synthesized hydrothermally by using SDS as the structure directing agent. The catalysts were characterized by N2 adsorption, DRX, 31P MAS NMR and FTIR. The activity of commercial and synthesized niobium phosphate catalysts were evaluated through the…

Catalysis Today, 2012, 192, pp.117-122. ⟨10.1016/j.cattod.2012.05.025⟩. ⟨hal-00751901⟩

• Article dans une revue

Chiral Ammonium-Capped Rhodium(0) Nanocatalysts: Synthesis, Characterization, and Advances in Asymmetric Hydrogenation in Neat Water

Elodie Guyonnet Bil É, Elodie Cortelazzo-Polisini, Audrey Denicourt-Nowicki, Rita Sassine, Franck Launay, Alain Roucoux

Optically active amphiphilic compounds derived from N-methylephedrine, N-methylprolinol, or cinchona derivatives possessing bromide or chiral lactate counterions were efficiently used as protective agents for rhodium(0) nanoparticles. The full characterization of these surfactants and the obtained…

ChemSusChem, 2012, 5, pp.91-101. ⟨10.1002/cssc.201100364⟩. ⟨hal-00750000⟩

• Communication dans un congrès

Catalyseurs Ni/Al2O3: de la synthèse à partir de précurseurs nickel-éthylènediamine à l'étude sous mélange CO/H2

Fabien Négrier, Eric Marceau, Michel Che, Jean-Marc Giraudon, Axel Löfberg, Lucien Leclercq

Gecat 2005, 2005, La Rochelle, France. ⟨hal-00082987⟩

• Article dans une revue

The controlled synthesis of metal-acid bifunctional catalysts: The effect of metal:acid ratio and metal-acid proximity in Pt silica-alumina catalysts for n-heptane isomerization

Jadid E Samad, Juliette R Blanchard, Celine R Sayag, Catherine R Louis, John R Regalbuto

Several series of metal-acid bifunctional catalysts with controlled metal:acid ratios and metal site-acid site proximity were evaluated for n-heptane isomerization. Through the study of metal deposition reported in the companion paper, proximity could be achieved at four distinct scales: atomic,…

Chinese Journal of Catalysis, 2016, 342, pp.203 - 212. ⟨10.1016/j.jcat.2016.08.004⟩. ⟨hal-01443956⟩

• Thèse

Catalysis assisted by plasmon, Catalyse assistée par plasmon

Iyad Sarhid

Metallic nanoparticles (NPs) have many applications in catalysis. Some of them (gold, silver, copper) have a visible absorption resulting from the excitation of the surface plasmon by an external electromagnetic field. In this project, we propose to couple the catalytic properties of gold-based…, Les nanoparticules (NPs) métalliques ont de nombreuses applications en catalyse. Certaines d’entre elles (or, argent, cuivre) présentent une absorption dans le visible résultant de l’excitation du plasmon de surface par un champ électromagnétique extérieur. Nous proposons dans ce projet de coupler…

Catalysis. Université Paris Saclay (COmUE), 2019. English. ⟨NNT : 2019SACLS227⟩. ⟨tel-02724739⟩

• Article dans une revue

Plasma Assisted Catalyst for NOx Remediation from Lean Gas Exhaust

Ahmed Khacef, Patrick da Costa, Gérald Djéga-Mariadassou

A non-thermal plasma (NTP) reactor was coupled with a three-function catalyst in order to verify the nature of the effect of the plasma on the catalytic process. A mixture of NO/O2/hydrocarbons in N2 was used as a lean model exhaust gas composition. The plasma was found to perform two of the three…

Journal of Engineering and Technology Research, 2013, 1 (1), pp.112-122. ⟨hal-00918937⟩

• Article dans une revue

Approach for Plasmonic Based DNA Sensing: Amplification of the Wavelength Shift and Simultaneous Detection of the Plasmon Modes of Gold Nanostructures

Jolanda Spadavecchia, Alexandre Barras, Joël Lyskawa, Patrice Woisel, William Laure, Claire-Marie Pradier, Rabah Boukherroub, Sabine Szunerits

In this article, the detection of DNA hybridization taking advantage of the plasmonic properties of gold nanostructures is described. The approach is based on the amplification of the wavelength shift of a multilayered localized surface plasmon resonance (LSPR) sensor interface upon hybridization…

Analytical Chemistry, 2013, 85, pp.3288-3296. ⟨10.1021/ac3036316⟩. ⟨hal-00836615⟩

• Article dans une revue

Current Progress in Aqueous Corrosion of Multi-Principal Element Alloys

M. Ghorbani, Z. Li, Y. Qiu, P. Marcus, J. Scully, Oumaïma Gharbi, H. Luo, R. Gupta, Z. Zeng, H. Fraser, M. Taheri, N. Birbilis

While multi-principal element alloys (MPEAs) remain a promising class of materials owing to several attractive mechanical properties, their corrosion performance is also unique. In this concise review, we present an emerging overview of some of the general features related to MPEA corrosion,…

Metallurgical and Materials Transactions A, 2024, 55 (8), pp.2571-2588. ⟨10.1007/s11661-024-07473-x⟩. ⟨hal-04752213⟩