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A novel polytype – the stacking fault based γ‐MoO 3 nanobelts
Author(s) -
Sławiński Wojciech A.,
Fjellvåg Øystein S.,
Ruud Amund,
Fjellvåg Helmer
Publication year - 2016
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s2052520615024804
Subject(s) - transmission electron microscopy , diffraction , materials science , crystallography , stacking , powder diffraction , electron diffraction , hydrothermal circulation , scanning electron microscope , lithium (medication) , selected area diffraction , hydrothermal synthesis , cathode , x ray crystallography , stacking fault , crystal structure , nanotechnology , chemistry , optics , chemical engineering , dislocation , composite material , physics , medicine , organic chemistry , engineering , endocrinology
γ‐MoO 3 nanobelts prepared by hydrothermal synthesis were studied by synchrotron radiation powder diffraction, scanning electron microscopy, transmission electron microscopy and selected area electron diffraction. Their nm dimensions, in particular in two crystallographic directions, have a profound influence on electrochemical properties during cycling as the cathode material in lithium‐ion batteries (LIBs). The diffraction analysis shows clearly that the crystal structure for the γ‐MoO 3 nanobelts differs significantly from that of bulk α‐MoO 3 . The observed powder diffraction pattern, with asymmetric peaks, extremely broad peaks, as well as additional or absent diffraction peaks, is fully described by means of a model based on stacking disorder of MoO 3 slabs.