• 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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Revealing Size Dependent Structural Transitions in Supported Gold Nanoparticles in Hydrogen at Atmospheric Pressure

Abdallah Nassereddine, Qing Wang, David Loffreda, Christian Ricolleau, Damien Alloyeau, Catherine Louis, Laurent Delannoy, Jaysen Nelayah, Hazar Guesmi

The enhancement of the catalytic activity of gold nanoparticles with their decreasing size is often attributed to the increasing proportion of low-coordinated surface sites. This correlation is based on the paradigmatic picture of working gold nanoparticles as perfect crystal forms having complete…

Small, 2021, pp.2104571. ⟨10.1002/smll.202104571⟩. ⟨hal-03367920⟩

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Self-Assembling of Redox-Active Atrazine Poly(ethylenimine) Conjugates – Interfacial Electrochemical and Spectroscopic Characterization

Zhaohui Chen, Michèle Salmain, Claire-Marie Pradier, Nathalie Fischer-Durand, Alain Pailleret, Féthi Bedioui, Sandrine Zanna

Thin films of polymers tethered with both atrazine haptens and ferrocenyl (Fc) probes were formed on polycrystalline gold electrodes by taking advantage of the facile formation of self-assembled monolayers (SAMs) of thiolates. These films were characterized by polarization modulation Fourier…

Electroanalysis, 2006, 18 (7), pp.684-694. ⟨10.1002/elan.200503451⟩. ⟨inserm-00194708⟩

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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⟩