• Article dans une revue

Enhanced Vibrational Spectroscopies as Tools for Small Molecule Biosensing

Souhir Boujday, Marc Lamy de La Chapelle, Johannes Srajer, Wolfgang Knoll

In this short summary we summarize some of the latest developments in vibrational spectroscopic tools applied for the sensing of (small) molecules and biomolecules in a label-free mode of operation. We first introduce various concepts for the enhancement of InfraRed spectroscopic techniques,…

Sensors, 2015, 15 (9), pp.21239-21264. ⟨10.3390/s150921239⟩. ⟨hal-01271513⟩

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Comparative study of physico-chemical, acid–base and catalytic properties of vanadium based catalysts in the oxidehydrogenation of n-butane: effect of the oxide carrier

Samira Slyemi, Akila Barama, Siham Barama, Hassiba Messaoudi, Sandra Casale, Juliette Blanchard

Reaction kinetics, mechanisms and catalysis, 2019, 128 (2), pp.831-845. ⟨10.1007/s11144-019-01653-2⟩. ⟨hal-03981718⟩

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Use of SBA-15 silica grains for engineering mixtures of oxides CoFe and NiFe for Advanced Oxidation Reactions under visible and NIR

Nabil Tabaja, Dalil Brouri, Sandra Casale, Sahar Zein, Mira Jaafar, Mohamed Selmane, Joumana Toufaily, Anne Davidson, Tayssir Hamieh

Applied Catalysis B: Environmental, 2019, 253, pp.369-378. ⟨10.1016/j.apcatb.2019.04.073⟩. ⟨hal-03981714⟩

• Article dans une revue

Effect of pore geometry of mesoporous supports on catalytic performances in methane reforming

Joy Tannous, Leila Karam, Marie-Nour Kaydouh, Henri El Zakhem, Nissrine El Hassan, Sandra Casale

Catalysts prepared using three dimensional SBA-16 silica support (composed of micropores and cage-like mesopores) were tested in the reaction of methane dry reforming, in comparison with 2D hexagonal mesoporous SBA-15 support. The samples were evaluated by N 2 sorption and X-Ray diffraction (XRD)…

MATEC Web of Conferences, 2018, 171, pp.01003. ⟨10.1051/matecconf/201817101003⟩. ⟨hal-03981700⟩

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Size-induced structural modifications affecting Co3O4 nanoparticles patterned in SBA-15 silicas

Anne Davidson, Irene Lopez, Nissrine El Hassan, Hadjira Guerba, Gilles Wallez

The structure of Co3O4 nanoparticles patterned in SBA-15 silicas is studied. With pore size of 7.3 nm, bundles of oriented particles, with (400) plane parallel to the hexagonal axis, is revealed by HR-TEM. With decreasing pore sizes, structural modifications, suggested by HR-TEM are confirmed by…

Chemistry of Materials, 2006, 18, pp.5828. ⟨hal-00128555⟩

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Discrimination of Surface and Bulk Structure of Crystalline Hydroxyapatite Nanoparticles by NMR

Manel Ben Osman, Sarah Diallo-Garcia, Virginie Herledan, Dalil Brouri, Tetsuya Yoshioka, Jun Kubo, Yannick Millot, Guylène Costentin

Solid state 1H and 31P NMR spectroscopy was used to characterize well-crystallized hydroxyapatite samples of different stoichiometry prepared by a precipitation route. The aim of the paper was to investigate the bulk structural features of samples with different stoichiometry and to discriminate…

Journal of Physical Chemistry C, 2015, 119 (40), pp.23008-23020. ⟨10.1021/acs.jpcc.5b08732⟩. ⟨hal-01212297⟩

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Revisiting active sites in heterogeneous catalysis: Their structure and their dynamic behaviour

Jacques C. Vedrine

This short review article aims at revisiting the description of active sites in heterogeneous catalysis on solid surfaces and their role in catalyst activity and selectivity. Special emphasis is brought to: (i) structure of the solid surface; (ii) importance of active site isolation on the surface…

Applied Catalysis A : General, 2014, 474, pp.40-50. ⟨10.1016/j.apcata.2013.05.029⟩. ⟨hal-01121663⟩

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Self-Assembly of Fatty Acids on Hydroxylated Al Surface and Effects of Their Stability on Wettability and Nanoscale Organization

Irma Liascukiene, Marie Steffenhagen, Svajus J. Asadauskas, Jean-François Lambert, Jessem Landoulsi

The self-assembly of fatty acids (FA) on the surfaces of inorganic materials is a relevant way to control their wetting properties. While the mechanism of adsorption on model flat substrate is well described in the literature, interfacial processes remain poorly documented on nanostructured…

Langmuir, 2014, 30 (20), pp.5797-5807. ⟨10.1021/la404756y⟩. ⟨hal-01121646⟩

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Influence of synthesis parameters of SBA-15 supported palladium catalysts for methane combustion and simultaneous NOx reduction

Maya Boutros, María Elena Gálvez, Thomas Onfroy, Patrick da Costa

Several synthesis routes were followed to prepare ordered mesoporous silica, SBA-15, and alumino-silica, Al–SBA-15, supported palladium catalysts. Synthesis method as well as the nature of precursor used in the preparation of these catalysts strongly determined their physico-chemical features which…

Microporous and Mesoporous Materials, 2014, 183, pp.1-8. ⟨10.1016/j.micromeso.2013.08.031⟩. ⟨hal-01121621⟩

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To be born is not enough: the key role of innovative start-ups

Alessandra Colombelli, Jackie Krafft, Marco Vivarelli

This paper investigates the reasons why entry per se is not necessarily good and the evidence showing that innovative start-ups survive longer than their non-innovative counterparts. In this framework, our own empirical analysis shows that greater survival is achieved when start-ups engage…

Small Business Economics, 2016, 47 (2), pp.1-15. ⟨10.1007/s11187-016-9716-y⟩. ⟨halshs-01248721⟩