Journal ArticleDOI
High-resolution powder diffractometer HRPT for thermal neutrons at SINQ
Peter Fischer,G Frey,M. Koch,M Könnecke,Vladimir Pomjakushin,Jürg Schefer,R. Thut,N Schlumpf,R Bürge,U. Greuter,S Bondt,E Berruyer +11 more
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TLDR
In this article, a powder diffractometer for thermal neutrons at the Swiss spallation neutron source SINQ is presented, based on a linear position-sensitive 3 He detector with 1600 wires and angular separation of 0.1°.Abstract:
Design characteristics and first experience concerning the new high-resolution powder diffractometer for thermal neutrons at the Swiss spallation neutron source SINQ are summarized. It is based on a linear position-sensitive 3 He detector with 1600 wires and angular separation of 0.1°, permitting also real-time experiments.read more
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Journal ArticleDOI
Anisotropic Lattice Strain and Mechanical Degradation of High- and Low-Nickel NCM Cathode Materials for Li-Ion Batteries
Aleksandr O. Kondrakov,Alexander Schmidt,Jin Xu,Holger Geßwein,Reiner Mönig,Pascal Hartmann,Heino Sommer,Torsten Brezesinski,Jürgen Janek +8 more
TL;DR: In this article, the capacity-fading mechanisms of both typical low-Ni NCM (x = 0.33, NCM111) and high-Ni cathode materials with a high Ni content (x ≥ 0.6) were investigated and compared from crystallographic and microstructural viewpoints.
Journal ArticleDOI
Synthesis and crystal growth of Cs 0.8 (FeSe 0.98 ) 2 :a new iron-based superconductor with T c = 27 K
Anna Krzton-Maziopa,Zurab Shermadini,Ekaterina Pomjakushina,Vladimir Pomjakushin,Markus Bendele,Markus Bendele,Anthony A. Amato,Rustem Khasanov,Hubertus Luetkens,Kazimierz Conder +9 more
TL;DR: The synthesis of large single crystals of a new FeSe layer superconductor Cs( 0.8)(FeSe(0.98))(2) is reported on, which shows a slightly lower superconducting transition temperature and the T(c) dependence on the anion height was found to be analogous to those reported for As-containing Fe superconductors and Fe(Se(1 - x)Ch(x)), where Ch = Te, S.
Journal ArticleDOI
Interstitial oxygen conduction in lanthanum oxy-apatite electrolytes
Laura León-Reina,Enrique R. Losilla,Maria Martinez-Lara,Sebastian Bruque,Miguel A. G. Aranda +4 more
TL;DR: In this article, the room temperature crystal structure of La9.32 has been determined from joint Rietveld refinement of neutron and laboratory X-ray powder diffraction data.
Journal ArticleDOI
Structural and Mechanistic Insights into Fast Lithium-Ion Conduction in Li4SiO4–Li3PO4 Solid Electrolytes
Yue Deng,Yue Deng,Christopher Eames,Jean-Noël Chotard,Fabien Lalère,Vincent Seznec,Steffen P. Emge,Oliver Pecher,Clare P. Grey,Christian Masquelier,M. Saiful Islam +10 more
TL;DR: Solid-state (6)Li, (7) Li, and (31)P NMR experiments reveal enhanced local Li-ion dynamics and atomic disorder in the solid solutions, which are correlated to the ionic diffusivity.
Journal ArticleDOI
CaMn1−x NbxO3 (x ≤ 0.08) Perovskite-Type Phases As Promising New High-Temperature n-Type Thermoelectric Materials
Laura Bocher,Myriam H. Aguirre,D. Logvinovich,Andrey Shkabko,R. Robert,Matthias Trottmann,Anke Weidenkaff +6 more
TL;DR: In the high-temperature range, the electron-doped manganate phases exhibit large absolute Seebeck coefficient and low electrical resistivity values, resulting in a high power factor, PF, which makes these phases the best perovskitic candidates as n-type polycrystalline thermoelectric materials operating in air at high temperatures.