Search Results - "Lyonnard, S"

Real time monitoring of water distribution in an operando fuel cell during transient states by Martinez, N., Peng, Z., Morin, A., Porcar, L., Gebel, G., Lyonnard, S.

“…The water distribution of an operating proton exchange membrane fuel cell (PEMFC) was monitored in real time by using Small Angle Neutron Scattering (SANS)…”
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Fast Water Diffusion and Long-Term Polymer Reorganization during Nafion Membrane Hydration Evidenced by Time-Resolved Small-Angle Neutron Scattering by Fumagalli, M, Lyonnard, S, Prajapati, G, Berrod, Q, Porcar, L, Guillermo, A, Gebel, G

“…We report a small-angle neutron scattering study of liquid water sorption in Nafion membranes. The swelling of hydrophilic domains was measured on the…”
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Neutrons for fuel cell membranes: Structure, sorption and transport properties by Lyonnard, S., Gebel, G.

“…A molecular level understanding of structure and transport properties in fuel cell ionomer membranes is essential for designing new electrolytes with improved…”
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Morphology-induced percolation in crosslinked AMPS/Fluorolink for fuel cell membrane application by Festin, N., Magana, S., Fumagalli, M., Chikh, L., Gouanvé, F., Mareau, V.H., Gonon, L., Lyonnard, S., Espuche, E., Fichet, O., Morin, A.

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Analysis of the small-angle intensity scattered by a porous and granular medium by Spalla, O., Lyonnard, S., Testard, F.

“…Using X‐ray scattering over a large range of scattering vectors, it is shown how to measure both the pore volume fraction and pore specific surface of an…”
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Lithiation heterogeneities in full cells by combined neutron and synchrotron scattering techniques by Lyonnard, S.

“…Abstract only…”
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Perfluorinated surfactants as model charged systems for understanding the effect of confinement on proton transport and water mobility in fuel cell membranes. A study by QENS by Lyonnard, S., Berrod, Q., Brüning, B.-A., Gebel, G., Guillermo, A., Ftouni, H., Ollivier, J., Frick, B.

“… We have investigated the dynamical properties of water confined in mesomorphous phases of perfluorinated sulfonic surfactants. These systems mimic the…”
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Role of Interparticle Potential in Controlling the Morphology of Spray-Dried Powders from Aqueous Nanoparticle Sols by Lyonnard, S, Bartlett, J. R, Sizgek, E, Finnie, K. S, Zemb, Th, Woolfrey, J. L

“…Precursor nanopowders for producing advanced ceramics are often prepared by spray-drying concentrated sols, to produce aggregated particles for ease of…”
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Influence of insoluble elements on the nanostructure of water altered glasses by Spalla, O., Barboux, P., Sicard, L., Lyonnard, S., Bley, F.

“…Borosilicate glasses with increasing amounts of zirconium (0–10% Zr) have been altered in static water. The structure of the altered layer at the nanometer…”
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Water Dynamics in Ionomer Membranes by Field-Cycling NMR Relaxometry by Perrin, J.-C., Lyonnard, S., Guillermo, A., Levitz, P.

“…The water dynamics of two types of ionomer membranes, the Nafion® and sulfonated polyimides, have been investigated by field‐cycling nuclear magnetic…”
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Time Scales and Atomic Species in the Phason Dynamics of AlCuFe Quasicrystals by Coddens, G., Lyonnard, S., Calvayrac, Y.

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Correlated Simultaneous Phason Jumps in an Icosahedral Al-Mn-Pd Quasicrystal by Coddens, G., Lyonnard, S., Hennion, B., Calvayrac, Y.

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Stoichiometry and C-rate impact on NMC/graphite lithiation: an in situ and operando study by Tardif, S., Jousseaume, T., Colin, J.F., Chandesris, M., Lyonnard, S.

“…Abstract only…”
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Combining USAXS with osmotic pressure measurements: a tool for investigating the equation of states of diluted charged colloids by Lyonnard, S., Belloni, L., Réus, V., Zemb, Th

“…We have developed a cell allowing in situ measurement of the osmotic pressure of solutions under Ultra Small‐Angle X‐ray Scattering (USAXS) examination. The…”
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Dynamics of phason hopping in AlFeCu and AlMnPd quasicrystals by Lyonnard, S., Coddens, G., Hennion, B., Calvayrac, Y.

“…We report the present state of knowledge about phason hopping in quasicrystals (QC) and discuss the results of quasielastic neutron scattering experiments in…”
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First results on the anisotropy of the quasi-elastic neutron scattering signal from phason dynamics in a single-grain quasicrystal of AlPdMn by Lyonnard, S., Coddens, G., Hennion, B., Bellissent, R., Calvayrac, Y.

“…The first (preliminary) results on the anisotropy of the quasi-elastic neutron scattering signal from atomic hopping (phasons) in quasicrystals are presented…”
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Triple-axis quasi-elastic neutron scattering study of phason dynamics in a single-grain quasicrystal of AlPdMn by Lyonnard, S., Coddens, G., Hennion, B., Bellissent, R., Calvayrac, Y.

“…We present the first (preliminary) results on the anisotropy of the quasi-elastic neutron scattering signal from atomic hopping (phasons) in quasicrystals. The…”
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Water Dynamics in Ionomer Membranes by Field-Cycling NMR Relaxometry by Perrin, Jean-Christophe, Lyonnard, Sandrine, Guillermo, Armel, Levitz, Pierre

“…The dynamic behavior of water within two types of ionomer membranes, Nafion and sulfonated polyimide, has been investigated by field-cycling nuclear magnetic…”
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Capillary condensation in a fractal porous medium by Broseta, D, Barré, L, Vizika, O, Shahidzadeh, N, Guilbaud, J P, Lyonnard, S

“…Small-angle x-ray and neutron scattering are used to characterize the surface roughness and porosity of a natural rock which are described over three decades…”
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Perfluorinated surfactants as model charged systems for understanding the effect of confinement on proton transport and water mobility in fuel cell membranes. A study by QENS: Progress in Dynamics in Confinement by LYONNARD, S, BERROD, Q, BRÜNING, B.-A, GEBEL, G, GUILLERMO, A, FTOUNI, H, OLLIVIER, J, FRICK, B

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