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Maximizing the Localized Relaxation: The Origin of the Outstanding Oxygen Storage Capacity of κ‐Ce 2 Zr 2 O 8
Author(s) -
Wang HaiFeng,
Guo YangLong,
Lu GuanZhong,
Hu P.
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200903907
Subject(s) - relaxation (psychology) , oxygen , oxygen storage , materials science , chemical physics , vacancy defect , oxygen atom , condensed matter physics , crystallography , chemistry , molecule , physics , psychology , social psychology , organic chemistry
Pretty vacant : The excellent oxygen storage capacity (OSC) of κ‐Ce 2 Zr 2 O 8 (see picture; Ce gray, Zr green, O red) is shown to be a result of its unique structural features; after removing oxygen atoms, the structural relaxation is local (vacancy shown in brown), and both the localized structural relaxation and the number of localized structural relaxations are maximized.