scholarly journals Proton dynamics of two-dimensional oxalate-bridged coordination polymers

2014 ◽  
Vol 16 (32) ◽  
pp. 17295-17304 ◽  
Author(s):  
Satoshi Miyatsu ◽  
Maiko Kofu ◽  
Atsushi Nagoe ◽  
Takeshi Yamada ◽  
Masaaki Sadakiyo ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Coordination Polymers ◽  
Conduction Mechanism ◽  
Proton Conductor ◽  
Proton Conduction ◽  
Two Dimensional ◽  
Quasielastic Neutron ◽  
New Type ◽  
Proton Dynamics ◽  
Quasielastic Neutron Scattering

The dynamics of H2O molecules and NH4+ ions in a new type of crystalline proton conductor (NH4)2(adp)[Zn2(ox)3]·3H2O has been investigated by quasielastic neutron scattering techniques to elucidate the proton conduction mechanism.

Proton dynamics in oxides: insight into the mechanics of proton conduction from quasielastic neutron scattering

2015 ◽  
Vol 17 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Maths Karlsson
Keyword(s):  
Neutron Scattering ◽  
Proton Conduction ◽  
Proton Conducting ◽  
Conducting Oxides ◽  
Quasielastic Neutron ◽  
Proton Dynamics ◽  
Quasielastic Neutron Scattering ◽  
Key Aspects ◽  
Insight Into

The key aspects, opportunities and perspectives of quasielastic neutron scattering studies of proton conducting oxides are discussed.

Quasielastic neutron scattering of two-dimensional water in a vermiculite clay

2000 ◽  
Vol 113 (7) ◽  
pp. 2873-2879 ◽  
Author(s):  
J. Swenson ◽  
R. Bergman ◽  
W. S. Howells
Keyword(s):  
Neutron Scattering ◽  
Two Dimensional ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering ◽  
Vermiculite Clay

Proton Diffusion in Strontium Cerate Ceramics studied by Quasielastic Neutron Scattering and Impedance Spectroscopy

1995 ◽  
Vol 50 (6) ◽  
pp. 539-548 ◽  
Author(s):  
Ch. Karmonik ◽  
R. Hempelmann ◽  
Th. Matzke ◽  
T. Springer
Keyword(s):  
Diffusion Coefficient ◽  
Impedance Spectroscopy ◽  
Neutron Scattering ◽  
Elevated Temperatures ◽  
Diffusion Mechanism ◽  
Proton Conductor ◽  
Proton Diffusion ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering ◽  
Strontium Cerate

Abstract Perovskite structured strontium cerate doped with ytterbium and water, e.g. SrCe0.95Yb0.05 H0.02O2.985, is a well known proton conductor at elevated temperatures. We have studied its proton conductivity or diffusivity, respectively, by impedance spectroscopy, IS, and by quasielastic neutron scattering, QENS. While the former method yields a macroscopic proton diffusion coefficient, the latter method allows to elucidate the microscopic proton diffusion mechanism. It consists of a sequence of free diffusion and trapping/escape events with the Yb3+ ions acting as trapping centers. The self-diffusion coefficient obtained with QENS agrees with the conductivity diffusion coefficient obtained with IS.

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