• Article dans une revue

Cobalt Based Catalysts Supported on Two Kinds of Beta Zeolite for Application in Fischer-Tropsch Synthesis

Renata Sadek, Karolina Chalupka, Pawel Mierczynski, Jacek Rynkowski, Jacek Gurgul, Stanislaw Dzwigaj

Co-containing Beta zeolite catalysts prepared by a wet impregnation and two-step postsynthesis method were investigated. The activity of the catalysts was examined in Fischer-Tropsch synthesis (FTS), performed at 30 atm and 260 °C. The physicochemical properties of all systems were investigated by…

Catalysts, 2019, 9 (6), pp.497. ⟨10.3390/catal9060497⟩. ⟨hal-02271879⟩

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Nanostructured and spiky gold in biomolecule detection: improving binding efficiencies and enhancing optical signals

E. E. Bedford, S. Boujday, C.-M. Pradier, F. X. Gu

Nanostructured gold can improve the ability to detect biomolecules. Whether planar nanostructured surfaces or nanostructured particles are used, similar principles governing the enhancement apply. The two main benefits of nanostructured gold are improved geometry and enhancement of optical…

RSC Advances, 2015, 5 (21), pp.16461-16475. ⟨10.1039/c4ra13544j⟩. ⟨hal-01133167⟩

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Fischer carbene mediated covalent grafting of a peptide nucleic acid on gold surfaces and IR optical detection of DNA hybridization with a transition metalcarbonyl label

Pratima Srivastava, Mahsa Ghasemi, Namrata Ray, Amitabha Sarkar, Jana Kocabova, Stepanka Lachmanova, Magdalena Hromadova, Souhir Boujday, Silvia Cauteruccio, Emanuela Licandro, Pramod Thakare, Céline Fosse, Michèle Salmain

Amine-reactive surfaces comprising N-hydroxysuccinimide ester groups as well as much more unusual Fischer alkoxymetallocarbene groups were generated on gold-coated surfaces via self-assembled monolayers of carboxy- and azido-terminated thiolates, respectively. These functions were further used to…

Applied Surface Science, 2016, 385, pp.47-55. ⟨10.1016/j.apsusc.2016.05.058⟩. ⟨hal-01325035⟩

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Well-Defined Amphiphilic Block Copolymers and Nano-objects Formed in Situ via RAFT-Mediated Aqueous Emulsion Polymerization

Xuewei Zhang, Stephanie Boisse, Wenjing Zhang, Patricia Beaunier, Franck d'Agosto, Jutta Rieger, Bernadette Charleux

Macromolecules, 2011, 44 (11), pp.4149-4158. ⟨10.1021/ma2005926⟩. ⟨hal-01877415⟩

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Microporous polyacrylate matrix containing hydrogen bonded nanotubular assemblies

Farid Ouhib, Emmanuelle Bugnet, Andrei Nossov, Jean-Luc Bonardet, Laurent Bouteiller

We report the straightforward photo-polymn. of polyacrylate films contg. bis-urea based self-assembled nanotubes. The obtained materials are characterized by gas adsorption measurements, 129Xe NMR spectroscopy and WAXS. The presence of the bis-ureas is shown by butane adsorption (at 273 K and…

Polymer, 2010, 51 (15), pp.3360-3364. ⟨10.1016/j.polymer.2010.05.047⟩. ⟨hal-00604788⟩

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Gold Nanoparticles Assembly on Silicon and Gold Surfaces: Mechanism, Stability and Efficiency in Diclofenac Biosensing

Maroua Ben Haddada, Maria Hübner, Sandra Casale, Dietmar Knopp, Reinhard Niessner, Michele Salmain, Souhir Boujday

We investigated the assembly of Gold nanoparticles (AuNPs) on Gold and Silicon sensors with two final objectives: (i) understanding the factors governing the interaction and (ii) building up a nanostructured piezoelectric immunosensor for diclofenac, a small-sized pharmaceutical pollutant.…

Journal of Physical Chemistry C, 2016, 120 (51), pp.29302-29311. ⟨10.1021/acs.jpcc.6b10322⟩. ⟨hal-01411566⟩

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Sustainable production of acrolein: effects of reaction variables, modifiers doping and ZrO2 origin on the performance of WO3/ZrO2 catalyst for the gas-phase dehydration of glycerol

Song-Hai Chai, Li-Zhi Tao, Bo Yan, Jacques C. Vedrine, Bo-Qing Xu

Zirconia-supported tungsten oxide (WO3/ZrO2 or WZ) is known as an efficient catalyst for selective acrolein (AC) production from gas-phase dehydration of glycerol (GL). Two catalysts (WZ-CP and WZ-AN) were prepared herein using, respectively, a ZrO(OH)2 hydrogel (ZrO(OH)2-CP) and its derived…

RSC Advances, 2014, 4 (9), pp.4619-4630. ⟨10.1039/C3RA46511J⟩. ⟨hal-01079293⟩

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Effect of Impregnation with Ammonia vs Silica Support Textural Properties on Ni Nanoparticle Catalysts for Dry Reforming of Methane

Oscar Daoura, Nissrine El Hassan, Maya Boutros, Sandra Casale, Pascale Massiani, Franck Launay

In this work, Ni(0) nanoparticles (3.5 and 5 wt %) highly dispersed on silica were obtained by reducing the calcined solid resulting from the impregnation of a nonporous siliceous support (here Aerosil-380) by aqueous nickel(II) nitrate in the presence of aqueous ammonia. The great effect of that…

ACS Applied Nano Materials, 2022, 5 (12), pp.18048-18059. ⟨10.1021/acsanm.2c03995⟩. ⟨hal-03987127⟩

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Elucidation of the IR of Cu and Mn substituted intraframework SiBEA zeolites

Etienne Hessou, Michael Badawi, Laetitia Valentin, Guy Atohoun, Stanislaw Dzwigaj, Monica Calatayud, Frederik Tielens

Copper and manganese modified zeolites play key roles in selective oxidation catalytic reactions. Combining Density Functional Perturbation Theory (DFPT) implemented in VASP, and infrared spectroscopy experiments, we have studied and elucidated the incorporation of Cu 2+ and Mn 2+ in the framework…

Topics in Catalysis, 2022, ⟨10.1007/s11244-022-01601-w⟩. ⟨hal-03650572⟩

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De la curiosité à l’évitement : l’adaptation des instances françaises de l’athlétisme face à la domination du Kenya en course de fond

Pascal Charroin, Bastien Soulé, Cyril Thomas

Sciences Sociales & Sport, 2021, 17 (1), pp.87-112. ⟨hal-04645881⟩