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Characteristics, Thermodynamics, and Preparation of Nanocaged 12CaO·7Al 2 O 3 and Its Derivatives
Author(s) -
Liao Songyi,
Yao Rui,
Chen Xiaoyu,
Wang Guangrong,
Zheng Feng
Publication year - 2016
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12566
Subject(s) - catalysis , metal , materials science , ion , doping , inorganic chemistry , crystal structure , rare earth , chemistry , thermodynamics , crystallography , organic chemistry , metallurgy , physics , optoelectronics
Crystal s tructures, characteristics, and preparations of 12CaO·7Al 2 O 3 family and CaO–Al 2 O 3 (C–A) system have been reviewed in detail with relevant thermodynamic parameters being assessed or recalculated. 12CaO·7Al 2 O 3 (shortened as C12A7) can form several derivatives of type C12A7:M n− or C12A7–M n− through replacing so‐called “free oxygen ion” by many anions including OH − , H − , O − , O 2 − , F − , Cl − , and e − in their cages, or being adopted by rare earth metals or alkaline earth metal oxides at cation sites (Ca 2+ or Al 3+ ). These doped C12A7 derivatives show unique material properties of transparent conduction, catalysis, and antibacterial with potential applications in fast ion conductors, optoelectronics, oxidants, and catalysts etc.