Results 181 to 190 of about 2,789 (229)
The application of quasi-elastic neutron scattering techniques (QENS) in surface diffusion studies [PDF]
The European Physical Journal Special Topics, 2012 Neutron scattering techniques such as quasi-elastic neutron scattering, QENS, have proven to be well-suited tools for studying structure and dynamics of surface adsorbed molecules.
I. Calvo-Almazán, P. Fouquet
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Dynamics of Methyl Iodide Clathrate Hydrate, Investigated by MD Simulations and QENS Experiments
Journal of Physical Chemistry C, 2011Arnaud Desmedt +2 more
exaly +2 more sources
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 [PDF]
, 2010 International audienceWe have investigated the dynamical properties of water confined in mesomorphous phases of perfluorinated sulfonic surfactants. These systems mimic the physico-chemical properties of the perfluorinated Nafion membranes which are used
S. Lyonnard +7 more
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Dynamic heterogeneity in polymer electrolytes. Comparison between QENS data and MD simulations [PDF]
, 2001 We have investigated the dynamics of poly(ethylene oxide) (PEO) lithium-based salt electrolytes (PEO-LiBETI) using quasi-elastic neutron scattering (QENS). Measurements were carried out on the spectrometer NEAT (HMI, Berlin) above the melting temperature
A. Triolo +8 more
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Neutron News, 1994
Abstract The Quasielastic Neutron Scattering workshop, held at Miramar Palace, San Sebastian, Basque Country (Spain) on September 26–28, 1993, was a natural continuation of the series started at Cumberland Lodge, Windsor, UK in 1992. There it was decided to establish periodic discussion forums to maintain the community in close contact during these ...
J. Colmenero, A. Alegría, J. Bermejo
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Abstract The Quasielastic Neutron Scattering workshop, held at Miramar Palace, San Sebastian, Basque Country (Spain) on September 26–28, 1993, was a natural continuation of the series started at Cumberland Lodge, Windsor, UK in 1992. There it was decided to establish periodic discussion forums to maintain the community in close contact during these ...
J. Colmenero, A. Alegría, J. Bermejo
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QENS investigation of filled rubbers
Applied Physics A: Materials Science & Processing, 2002The polymer segmental dynamics is investigated in a series of silica-filled rubbers. The presence of inert fillers in polymers greatly affects the mechanical and physical performance of the final materials. For example, silica has been proposed as a reinforcing agent of elastomers in tire production.
Triolo A. +9 more
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QENS and NMR Investigation of Reorientational Dynamics in C61H2
Journal of Physics and Chemistry of Solids, 1993The molecular dynamics of the dihydrofulleroid C61H2 [1] have been studied. Protonated and deuterated samples have been synthesized and characterized by 13C, 1H, 2H high resolution NMR, HPLC, TGA, DSC and mass spectrometry. The molecular dynamic has been studied by powder NMR, and Quasielastic Neutron Scattering.
CRISTOFOLINI, Luigi +3 more
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QENS and FTIR studies on binding states of benzene molecules adsorbed in zeolite HZSM-5 at room temperature [PDF]
, 2001 Fourier-transform infrared (FTIR) spectroscopy and quasi-elastic neutron scattering (QENS) were employed for monitoring of the binding states of benzene molecules, adsorbed in HZSM-5 zeolite at 300 K and for loadings of 0.6 to 7 molecules per ...
A. Tripathi +5 more
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A particle jumping in an octahedron studied by QENS
Physica B: Condensed Matter, 2000Abstract We calculate the neutron incoherent scattering law due to a particle performing localized diffusional jumps in a confined environment of octahedral symmetry. An experimental realization for this model is provided by the fulleride Li12C60, where the Li ions diffuse within the octahedral void determined by the surrounding C60 spheres packed in
CRISTOFOLINI, Luigi +2 more
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