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In‐Operando Neutron Diffraction Studies of Transition Metal Hydrogen Storage Materials
Author(s) -
Kamazawa Kazuya,
Aoki Masakazu,
Noritake Tatsuo,
Miwa Kazutoshi,
Sugiyama Jun,
Towata Shinichi,
Ishikiriyama Mamoru,
Callear Samantha K.,
Jones Martin O.,
David William I. F.
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200390
Subject(s) - neutron diffraction , materials science , hydrogen storage , hydrogen , hydride , tetragonal crystal system , octahedron , crystallography , transition metal , diffraction , metal , interstitial defect , desorption , absorption (acoustics) , diffusion , crystal structure , chemistry , metallurgy , adsorption , doping , optics , alloy , thermodynamics , composite material , catalysis , biochemistry , physics , optoelectronics , organic chemistry
Neutron diffraction studies of hydrogen absorption and desorption (non‐isotopically enriched) in the metal hydride Ti 25 Cr 50 V 20 Mo 5 H x , reveal the origin of the reduction in capacity exhibited by this material on cycling. The sequestered hydrogen is principally located in the octahedral and tetrahedral interstitial sites in the basal plane, while local diffusion along the unique tetragonal axis appears to be preferred.