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Structure Property Relationships and Cationic Doping in [Ca24Al28O64]4+ Framework: A Review. CRYSTALS 2017. [DOI: 10.3390/cryst7050143] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ca12Al14O33 (C12A7, 12CaO·7Al2O3, or [ Ca 12 Al 14 O 32 ] 2 + : O 2 − ) is a material with a clathrate cage framework, positively charged and stabilized by anions occluded within 17% of the cages. The occluded anion is modular and can be elemental, polyatomic, and electronic in nature. This review focuses on the electride C12A7 ( [ Ca 24 Al 28 O 64 ] 4 + : ( 4 * ∂ ) e − ( 2 − ∂ ) O 2 − ), where O2− anions are replaced with electrons, and compliments previous structural and electronic property reviews to illuminate the structure–property relationships. Electride formation is updated with new findings in carbonaceous reduction methods. Most importantly, an extensive compilation of cationic doped C12A7 isostructural compounds is presented as motivation to study doped C12A7 electrides. Cationic dopants have profound impacts on the electronic properties due to changes in the density of states, localized electron behavior, and structural distortions.
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Yamamoto H, Nagase M, Chen Q, Sadakata M. Oxidative Decomposition of Biomass Tars by O- Radicals from C12A7. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2008. [DOI: 10.1252/jcej.08we018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Manabu Nagase
- Department of Environmental Chemical Engineering, Kogakuin University
| | - Qun Chen
- Department of Environmental Chemical Engineering, Kogakuin University
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Hayashi K, Hirano M, Hosono H. Functionalities of a Nanoporous Crystal 12CaO·7Al2O3Originating from the Incorporation of Active Anions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.872] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kohama Y, Tojo T, Kawaji H, Atake T, Matsuishi S, Hosono H. Disorder of O2− ion and incorporation of O− and O2- radicals in nanoporous crystal 12CaO·7Al2O3 studied by low-temperature heat capacity measurements. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hosono H, Kamiya T, Hirano M. Function Cultivation of Transparent Oxides Utilizing Built-In Nanostructure. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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