Quasielastic neutron scattering investigation of motion of water molecules in n-propyl alcohol-water mixture

2009 ◽  
Vol 130 (7) ◽  
pp. 074503 ◽  
Author(s):  
Masaru Nakada ◽  
Kenji Maruyama ◽  
Osamu Yamamuro ◽  
Masakatsu Misawa
1995 ◽  
Vol 50 (2-3) ◽  
pp. 247-256 ◽  
Author(s):  
G. W. Neilson ◽  
S. Ansell ◽  
J. Wilson

Abstract The following paper comprises a survey of the role neutron scattering methods have played to help understand the origins of the diverse properties of electrolyte solutions which contain transition metal cations. It is seen how neutron diffraction and isotopic substitution is able to resolve the local structure around contrasting ions, such as Cr3+ , Ni2+, Fe3+ , Fe2+, Cu2+, without recourse to sophisticated modelling procedures. Quasielastic neutron scattering (QNS) provides insight into the dynamics of the protons in solution. The results enable one to distinguish between cations whose water molecules are coordinated on time scales larger than 5 x 10-9 s, shorter than 10-10s, or intermediate between those two limits. QNS also provides information on the existence of a second relatively short-lived hydration shell distinct from the bulk water.


2018 ◽  
Vol 51 (6) ◽  
pp. 1564-1570
Author(s):  
Takuo Okuchi ◽  
Naotaka Tomioka ◽  
Narangoo Purevjav ◽  
Kaoru Shibata

It is demonstrated that quasielastic neutron scattering is a novel and effective method to analyse atomic scale hydrogen transport processes occurring within a mineral crystal lattice. The method was previously characterized as sensitive for analysing the transport frequency and distance of highly diffusive hydrogen atoms or water molecules in condensed matter. Here are shown the results of its application to analyse the transport of much slower hydrogen atoms which are bonded into a crystal lattice as hydroxyls. Two types of hydrogen transport process were observed in brucite, Mg(OH)2: a jump within a single two-dimensional layer of the hydrogen lattice and a jump into the next nearest layer of it. These transport processes observed within the prototypical structure of brucite have direct implications for hydrogen transport phenomena occurring within various types of oxides and minerals having layered structures.


2021 ◽  
pp. 2100620
Author(s):  
Neslihan Aslan ◽  
Gökhan Gizer ◽  
Claudio Pistidda ◽  
Martin Dornheim ◽  
Martin Müller ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document