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On the Existence of A‐Site Deficiency in Perovskites and Its Relation to the Electrochemical Performance
Author(s) -
Konysheva Elena Yu.,
Xu Xiaoxiang,
Irvine John T. S.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201103352
Subject(s) - perovskite (structure) , materials science , thermogravimetric analysis , neutron diffraction , transmission electron microscopy , diffraction , electrochemistry , powder diffraction , simple (philosophy) , range (aeronautics) , nanotechnology , chemical engineering , crystallography , chemistry , electrode , optics , composite material , physics , philosophy , engineering , epistemology
The low range of A‐site deficiency in perovskite structures with Ni cations was verified by neutron powder diffraction, transmission electron microscopy, and thermogravimetric analysis. A thermodynamic approach has been utilized, for the first time, to predict the extent of A‐site deficiencies within the perovskite structure, introducing simple prediction criteria that could be adopted for designing advanced materials.