Results 11 to 20 of about 652 (172)

Hydration‐ and Temperature‐Dependent Rotational Dynamics and Water Diffusion in Nanocellulose

Small Structures
Nanocellulose is a promising alternative to fossil‐derived materials, but its development is hindered by a limited understanding of cellulose–water interactions.
Agnes Åhl, Aleksander Jaworski, Elisabetta Nocerino, Matilda Andersson, Mika H. Sipponen, Fanni Juranyi, Lennart Bergström   +6 more
doaj   +2 more sources

Quasielastic Neutron Scattering Reveals Anisotropic Water Transport in Smectite Thin Film

Advanced Materials Interfaces
Clay minerals exhibit complex interactions with water that critically influence their functional properties, yet the anisotropic nature of water dynamics in smectite thin films remains underexplored.
Yiran Jin, Kristoffer Vorm, Will P. Gates, Félix J. Villacorta, Hery Mitsutake, Seiko Ohira‐Kawamura, Takeshi Yamada, Yukinobu Kawakita, Charalampos Tsekeridis, José E. M. Pereira, Masatoshi Arai, Heloisa N. Bordallo   +11 more
doaj   +2 more sources

Sample environment for simultaneous quasi-elastic neutron scattering and Raman spectroscopy experiments demonstrated on polymer films under changing humidity and temperature. [PDF]

J Appl Crystallogr
We present a sample environment for simultaneous quasi‐elastic neutron scattering and Raman spectroscopy experiments demonstrated on soft‐matter films under variable and controlled relative humidity and temperature.Understanding the dynamic and structural properties of matter across different timescales and length scales is essential for elucidating ...
Kreuzer LP, Wolf M, Ganster F, Garvey CJ, Stephan A, Betker M, Juranyi F, Müller-Buschbaum P.   +7 more
europepmc   +2 more sources

Effect of Halide Variations on Cation Dynamics in MAPbX₃ (X = Cl, Br, and I). [PDF]

Small
This study uncovers the pivotal role of halide composition in dictating MA cation dynamics in MAPbX3 (X = Cl, Br, and I). MAPbCl3 exhibits the earliest and broadest onset of threefold MA rotation with the lowest activation energy, driven by pronounced octahedral distortions and reduced steric hindrance from the smaller Cl⁻ ion.
Sharma VK, Mohanty A, Sakai VG, Tyagi M, Sarma DD.   +4 more
europepmc   +2 more sources

Two Pressure Cells for Quasielastic and Inelastic Neutron Scatterings [PDF]

EPJ Web of Conferences, 2022
Two clamp pressure cells for QENS and INS have been developed. One is a hybrid CuBe/NiCrAl cell which is for relative high pressure up to 2.5 GPa and another one is made from high strength aluminium alloy (mesolite NA723) with pressure up to 0.5 GPa. The
Yuan Bao, Mole Richard, Wang Chin-Wei, Shumack Amy, White Rachel, Li Bing, Tong Xin, Yu Dehong   +7 more
doaj   +1 more source

Revisiting the modeling of quasielastic neutron scattering from bulk water [PDF]

EPJ Web of Conferences, 2022
Quasi-elastic neutron scattering (QENS) from bulk-water at 300 K, measured on the IRIS backscattering neutron spectrometer (ISIS, UK), is interpreted using the jump diffusion model (JDM), a “minimalistic” multi-timescale relaxation model (MRM) and ...
Petersen Martin H., Telling Mark T. F., Kneller Gerald, Bordallo Heloisa N.   +3 more
doaj   +1 more source

High Ionic Conduction in Rb- and Cs-Mixed Cation Amide for Energy Storage. [PDF]

Small
A mixed cation‐amide solid solution, Rb0.5Cs0.5NH2, based on the interaction between RbNH2‐ and CsNH2, has been developed. The Rb⁺/Cs⁺ cationic substitution leads to structural stabilization, resulting in high ionic conductivity in the Rb0.5Cs0.5NH2 compared to the single compounds.
Le TT, Sellschopp K, Murgia F, Garden AL, Bordignon S, Embs JP, Chierotti MR, Schökel A, Karimi F, Jerabek P, Klassen T, Pistidda C.   +11 more
europepmc   +2 more sources

Water Dynamics in Cancer Cells: Lessons from Quasielastic Neutron Scattering

Medicina, 2022
The severity of the cancer statistics around the globe and the complexity involving the behavior of cancer cells inevitably calls for contributions from multidisciplinary areas of research.
Murillo L. Martins, Heloisa N. Bordallo, Eugene Mamontov   +2 more
doaj   +1 more source

Experimental demonstration of the novel “van-Hove integral method (vHI)” for measuring diffusive dynamics by elastic neutron scattering

Scientific Reports, 2021
Quasi-elastic neutron scattering (QENS)—based on the seminal work of Nobel Laureate Brockhouse—has been one of the major methods for studying pico-second to nano-second diffusive dynamics over the past 70 years.
Antonio Benedetto, Gordon J. Kearley
doaj   +1 more source

Incommensurate structure of AlPO₄-5 and its stability. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
The incommensurately modulated structure of AlPO4‐5 was elucidated by single‐crystal X‐ray diffraction, revealing correlated rotational displacements of AlO4 and PO4 tetrahedra.The incommensurate structure of AlPO4‐5 and its stability have been investigated in detail.
Komatsu K, Ikeda T, Kodaira T.
europepmc   +2 more sources