Structural Reorganization of Noncellulosic Polymers Observed In Situ during Dilute Acid Pretreatment by Small-Angle Neutron Scattering

2021 ◽  
Author(s):  
Zhi Yang ◽  
Marcus B. Foston ◽  
Hugh O’Neill ◽  
Volker S. Urban ◽  
Arthur Ragauskas ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Dilute Acid Pretreatment ◽  
Dilute Acid ◽  
Acid Pretreatment ◽  
Structural Reorganization

An in situ small angle neutron scattering study of expanded graphite under a uniaxial stress

Carbon ◽  
2013 ◽  
Vol 57 ◽  
pp. 460-469 ◽  
Author(s):  
Félix Balima ◽  
Vittoria Pischedda ◽  
Sylvie Le Floch ◽  
Annie Brûlet ◽  
Peter Lindner ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Expanded Graphite ◽  
Uniaxial Stress ◽  
Scattering Study ◽  
Neutron Scattering Study

scholarly journals In Situ Monitoring of Latex Film Formation by Small-Angle Neutron Scattering: Evolving Distributions of Hydrophilic Stabilizers in Drying Colloidal Films

Langmuir ◽  
2019 ◽  
Vol 35 (10) ◽  
pp. 3822-3831 ◽  
Author(s):  
Ignacio Martín-Fabiani ◽  
David K. Makepeace ◽  
Philip G. Richardson ◽  
Jennifer Lesage de la Haye ◽  
Diego Alba Venero ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Film Formation ◽  
In Situ Monitoring ◽  
Latex Film ◽  
Colloidal Films ◽  
Latex Film Formation

Experimental Evidence of Super Densification of Adsorbed Hydrogen by in-situ Small Angle Neutron Scattering (SANS)

2011 ◽  
Vol 1334 ◽  
Author(s):  
Dipendu Saha ◽  
Lilin He ◽  
Cristian I. Contescu ◽  
Nidia C. Gallego ◽  
Yuri B. Melnichenko
Keyword(s):  
Neutron Scattering ◽  
Pore Size ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Hydrogen Gas ◽  
Necessary Condition ◽  
Adsorbed Hydrogen ◽  
Oak Ridge ◽  
Hydrogen Molecules

ABSTRACTEntrapping hydrogen molecules within the nanopores of solid adsorbents serves as a unique alternative for on-board storing of hydrogen for transportation purposes. The key advantage of the physisorption process for hydrogen storage is the higher density values achieved with the adsorbed gas, compared to that of the compressed phase, translating into higher storage capacities at lower pressures. The necessary condition for effective adsorption is the presence of narrow micropores of < 2 nm in width which provide the most suitable environment of hydrogen adsorption. Despite numerous theoretical calculations or indirect experimental estimations, there has not been a direct experimental measurement of the density of adsorbed hydrogen as a function of pressure and/or pore size. In the present study, we report on the use of in-situ small angle neutron scattering (SANS) to study the phase behavior of hydrogen confined in narrow micropores. We provide for the first time direct experimental measurements of the effect of pore size and pressure on hydrogen adsorbed on a polyfurfuryl alcohol-derived activated carbon (PFAC), at room temperature and pressures up to 207 bar. SANS studies were carried out at the General-Purpose Small-Angle Neutron Scattering spectrometer of the High Flux Isotope Reactor at Oak Ridge National Laboratory. The measurements covered the Q-range from 0.01 to 0.8 Å-1, covering the pores in the range of 9 to 34 Å of the PFAC material. Initial results suggest that the density of adsorbed hydrogen is higher than the density of bulk hydrogen gas and increases with decreasing pore size.

scholarly journals In-Situ Small-Angle Neutron Scattering from a Block Copolymer Solution under Shear

1994 ◽  
Vol 27 (9) ◽  
pp. 2566-2573 ◽  
Author(s):  
N. P. Balsara ◽  
B. Hammouda ◽  
P. K. Kesani ◽  
S. V. Jonnalagadda ◽  
G. C. Straty
Keyword(s):  
Block Copolymer ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Copolymer Solution

Small-Angle Neutron Scattering for In Situ Probing of Ion Adsorption Inside Micropores

2013 ◽  
Vol 125 (17) ◽  
pp. 4716-4720 ◽  
Author(s):  
S. Boukhalfa ◽  
L. He ◽  
Y. B. Melnichenko ◽  
Gleb Yushin
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Ion Adsorption
Sign in / Sign up

Export Citation Format

Share Document