scholarly journals Probing the effects of 2D confinement on hydrogen dynamics in water and ice adsorbed in graphene oxide sponges

2015 ◽  
Vol 17 (47) ◽  
pp. 31680-31684 ◽  
Author(s):  
Giovanni Romanelli ◽  
Roberto Senesi ◽  
Xuan Zhang ◽  
Kian Ping Loh ◽  
Carla Andreani
Keyword(s):  
Graphene Oxide ◽  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
High Momentum ◽  
Energy Transfers

In this paper we present the results of a Deep Inelastic Neutron Scattering (DINS) study of the hydrogen dynamics of water and ice 2D-adsorbed in GO layered sponges at T = 293 K and T = 20 K, using neutrons with high momentum, ℏq, and energy transfers, ℏω.

Impulse approximation neutron scattering from N2

1995 ◽  
Vol 73 (11-12) ◽  
pp. 772-778 ◽  
Author(s):  
R. A. Cowley ◽  
M. P. Zinkin ◽  
R. S. Eccleston ◽  
A. C. Evans ◽  
M. J. Harris
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Impulse Approximation ◽  
Inelastic Neutron ◽  
Vibrational Modes ◽  
Excitation Energies ◽  
Energy Transfers ◽  
Molecular Excitation ◽  
The Individual ◽  
Good Agreement

We present the results of a detailed investigation of the inelastic neutron scattering from diatomic N2, at wave-vector transfers in the range Q = 20–100 Å−1 (1Å = 10−10 m). At intermediate Q, the scattering shows structure arising from the vibrational modes of the molecule, while at large Q the scattering is well described by the impulse approximation for the individual atoms, despite the fact that the corresponding energy transfers are considerably less than the maximum molecular excitation energies. We find good agreement for all Q with a calculation incorporating the internal rotational and vibrational modes of the molecule explicitly.

Comment on "High-Momentum-Transfer Inelastic Neutron Scattering from Liquid Helium-3"

1985 ◽  
Vol 55 (21) ◽  
pp. 2367-2367 ◽  
Author(s):  
J. Carlson ◽  
R. M. Panoff ◽  
K. E. Schmidt ◽  
P. A. Whitlock ◽  
M. H. Kalos
Keyword(s):  
Neutron Scattering ◽  
Momentum Transfer ◽  
Liquid Helium ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
High Momentum ◽  
High Momentum Transfer ◽  
Helium 3

Incoherent inelastic neutron-scattering studies of the structure of water associated with DNA and gelatin

2003 ◽  
Vol 81 (1-2) ◽  
pp. 367-371 ◽  
Author(s):  
I A Beta ◽  
A I Kolesnikov ◽  
I Michalarias ◽  
G L Wu ◽  
R C Ford ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Rutherford Appleton Laboratory ◽  
Structure Of Water ◽  
Amorphous Ice ◽  
Energy Transfers ◽  
Optical Region ◽  
Scattering Spectra ◽  
Water Contents

Incoherent inelastic neutron-scattering spectra of DNA and gelatin samples with different hydration levels were measured with the TOSCA spectrometer at ISIS, Rutherford Appleton Laboratory. Comparison with the spectra of different ice phases shows that for water contents up to 0.75 g water/g DNA and 0.5 g water/g gelatin the optical region (20–50 meV) is almost featureless, similar to high-density amorphous ice (HDA). The librational band is shifted to lower energy transfers and its edge at 55 meV matches again the spectrum of HDA ice. For water contents of 1 g water/g DNA and 0.75 g water/g gelatin resemblance to spectra of ice Ih and low-density amorphous ice (LDA) is obvious. PACS Nos.: 61.12Ex, 82.39Jn

Characterization of Dipeptide-based Sorbent Materials using Combined Thermodynamic and Inelastic Neutron Scattering Techniques

2015 ◽  
Vol 1793 ◽  
pp. 47-52
Author(s):  
Daniele Paradiso ◽  
Enrico Perelli Cippo ◽  
Giuseppe Gorini ◽  
Giorgio Rossi ◽  
J. Z. Larese
Keyword(s):  
High Resolution ◽  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Selective Adsorption ◽  
Inelastic Neutron ◽  
Adsorption Properties ◽  
Fold Axis ◽  
X Ray Diffraction ◽  
Energy Transfers ◽  
Sorbent Materials

ABSTRACTUsing a combination of x-ray diffraction, volumetric adsorption and inelastic neutron scattering (INS) the adsorption properties of methane within the channels of L-Isoleucyl-L-Valine (IV) and L-Valyl-L-Alanine (VA) dipeptides have been investigated. These biomaterials have quasi one-dimensional channels of tunable diameters in the range of 3-6 Å and offer possibilities for selective adsorption, as well as, water and gas transport properties. High-resolution volumetric methane adsorption measurements performed near 100K for IV find that this biomaterial exhibits an adsorption capacity of ∼100 m2/g. High-resolution Inelastic Neutron Scattering (INS) measurements were performed at the Spallation Neutron Source using the BASIS spectrometer with ∼ 3.5 μeV resolution. The data clearly indicate that at least two spectral features at energy transfers near 100 and 200 μeV are present, which suggests a lowering of the hindering potential for methane reorientation primarily about the three-fold axis within the IV channels. Such features play a key role in understanding details concerning the potential energy surface. These thermodynamic and INS studies suggest that the flexibility and dynamical motion within the dipeptide channels may play a significant role in the adsorption properties.

The inelastic neutron scattering spectrum of chromous acid at high energy transfers

1985 ◽  
Vol 82 (3) ◽  
pp. 1112-1114 ◽  
Author(s):  
J. Tomkinson ◽  
A. D. Taylor ◽  
J. Howard ◽  
J. Eckert ◽  
J. A. Goldstone
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
High Energy ◽  
Inelastic Neutron ◽  
Scattering Spectrum ◽  
Energy Transfers

Anomalous vibrational modes in acetanilide as studied by inelastic neutron scattering

1992 ◽  
Vol 2 (10) ◽  
pp. 1929-1939 ◽  
Author(s):  
Mariette Barthes ◽  
Juegen Eckert ◽  
Susanna W. Johnson ◽  
Jacques Moret ◽  
Basil I. Swanson ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Vibrational Modes
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