microporous crystal 12cao·7al2o3 encaging abundant o

Katsuro HAYASHI Professor (Full) Prof. Dr. Kyushu

An inorganic crystal composed of abundant main-group elements 12CaO·7Al2O3 (C12A7) with nanocage structure shows multiple functions due to the incorporation of a wide variety of extraframework An inorganic crystal composed of abundant main-group elements 12CaO·7Al2O3 (C12A7) with nanocage structure shows multiple functions due to the incorporation of a wide variety of extraframework

Katsuro HAYASHI Professor (Full) Prof. Dr. Kyushu

An inorganic crystal composed of abundant main-group elements 12CaO·7Al2O3 (C12A7) with nanocage structure shows multiple functions due to the incorporation of a wide variety of extraframework An inorganic crystal composed of abundant main-group elements 12CaO·7Al2O3 (C12A7) with nanocage structure shows multiple functions due to the incorporation of a wide variety of extraframework

Liquid-feed flame spray pyrolysis derived nanopowders (NPs

Apr 01 2019 · Microporous crystal 12CaO· 7Al2O3 encaging abundant O-Radicals J. Am. Chem. Soc. 124 ( 2002 ) pp. 738739 CrossRef View Record in Scopus Google Scholar 11 H. Hosono K. Hayashi and M. Hirano "Active anion manipulation for emergence of active functions in the nanoporous crystal 12CaO-7Al2O3 a case study of abundant element strategy " Journal of Materials Science vol. 42 no. 6 pp. 2007.

Katsuro HAYASHI Professor (Full) Prof. Dr. Kyushu

An inorganic crystal composed of abundant main-group elements 12CaO·7Al2O3 (C12A7) with nanocage structure shows multiple functions due to the incorporation of a wide variety of extraframework The crystal lattice of 12CaO·7Al 2 O 3 (refs 7–13) (C12A7) belongs to the space group of I 4macr3d with a lattice constant of 1.199 nm (ref. 7) and the unit cell includes two molecules and

Exploring the capability of mayenite (12CaO·7Al 2 O 3 ) as

Mar 18 2021 · Introduction. Mayenite (12CaO·7Al 2 O 3) is a calcium aluminate compound and well-known constituent of high-alumina cement s unique emissive optical and chemical properties such as oxygen mobility 14 ionic conductivity 58 and catalytic performance 911 have been explored and researched. The mayenite structure has the following stoichiometry Ca 24 Al 28 O 64 4 and anion Light metal oxide 12CaO·7Al2O3(abbreviated as C12A7) has attracted attention for use in functional ceramics. The crystal structure of C12A7 is cubic with a unit cell composed of a positively charged lattice framework Ca24Al28O64 4 and two extraframework oxide ions (called free O2–ions) that compensate the positive lattice framework.

Phase transitions in mayenite SpringerLink

Abstract. This paper was devoted to explanation of the phase transitions nature in Ca 12 Al 14 O 33±δ which were studied by a combination of methods simultaneous thermal analysis high-temperature X-ray diffraction analysis Raman spectroscopy. One of the phase transitions is assumed to be connected with peroxide ions appearance/disappearance in mayenite at 922 K. The crystal structure of 12CaO·7Al 2 O 3 has been widely researched because of its unique nanoporous framework but all of the works are in the fields of material and cement 1013

Dilatometric study of a strontium ferrotitanate and

Dec 17 2015 · The effect of oxygen partial pressure on the dimensions of SrTi0.7Fe0.3O3 ± δ strontium ferrotitanate (perovskite structure) and Ca12Al14O33 ± δ calcium aluminate (mayenite structure) samples has been studied by dilatometry. The observed considerable variations in dimensions are characteristic of electronic–ionic mixed conductors with the perovskite structure. Jan 10 2002 · Abstract Extremely high concentrations (>10 20 cm -3) of active oxygenic radicals O - and O 2- have been created in the zeolitic crystal 12CaO·7Al 2 O 3 (C12A7) which can accommodate anions in its cavities. An increase in oxygen pressure and a decrease in water vapor pressure at high temperature enhance the formation of the radicals.

Nanostructure and surface activation of mayenite (12CaO

Jul 01 2017 · Mayenite (12CaO·7Al 2 O 3) is a highly interesting functional material due to the wide variety of its possible future applications this study we used femtosecond laser irradiation in several solvents with varying polarities to increase the specific surface area of 12CaO·7Al 2 O 3 ceramics and reduce their particle size without any structural degradation or loss of crystallinity. Chem Mater 2004 16 . 21 Hayashi K Hirano M Matsuishi S et al. Microporous crystal 12CaO·7Al2O3 encaging abundant O- radicals J . J Am Chem Soc 2002 124 738–739. 22 Quanxin Li Hideo H Masahiro H et al. High -intensity atomic oxygen radical anion emission mechanism from 12CaO·7Al2O3 crystal surface J .

‪Katsuro Hayashi‬‪Google Scholar‬

Microporous Crystal 12CaO⊙ 7Al2O3 Encaging Abundant O-Radicals K Hayashi M Hirano S Matsuishi H Hosono Journal of the American Chemical Society 124 (5) 2002 Nov 21 2008 · An isothermal section of the system Al 2 O 3-CaO-CoO at 1500 K has been established by equilibrating 22 samples S. Matsuishi and H. Hosono 2002 Microporous Crystal 12CaO.7Al 2 O 3 Encaging Abundant O J. F. Vente and P 2002 Quintana Sub-solidus Phase Equilibria in the System CaO-Al 2 O 3-CoO and the Crystal Structure of Novel Ca 3 CoAl

Preparation of Macroprous C12A7 Mayenite Monoliths via a

18 K.Hayashi M.Hirano S.Matsuishi et al. Microporous crystal 12CaO 7Al2O3 encaging abundant O- radicals. Journal of the American Chemical Society 124(2002)738-9. Journal of the American Chemical Society 124(2002)738-9. Jul 01 2004 · This compound is easily prepared by a conventional solid-state reaction in air but is not formed in O 2 or moisture-free atmosphere. The crystal lattice of 12CaO·7Al 2 O 3 (C12A7) with a micro porous structure has a cubic lattice constant of 1.199 nm and the unit cell includes two molecules is characterized by a positively charged lattice framework Ca 24 Al 28 O 64 4 having 12

Nanostructure and surface activation of mayenite (12CaO

Jul 01 2017 · Mayenite (12CaO·7Al 2 O 3) is a highly interesting functional material due to the wide variety of its possible future applications this study we used femtosecond laser irradiation in several solvents with varying polarities to increase the specific surface area of 12CaO·7Al 2 O 3 ceramics and reduce their particle size without any structural degradation or loss of crystallinity.

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Crystals Free Full-Text Structure Property

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 18 K.Hayashi M.Hirano S.Matsuishi et al. Microporous crystal 12CaO 7Al2O3 encaging abundant O- radicals. Journal of the American Chemical Society 124(2002)738-9. Journal of the American Chemical Society 124(2002)738-9.

Fabrication of Highly Conductive 12CaO·7Al2O3 Thin Films

Jun 30 2003 · Abstract Thin films of a new transparent oxide semiconductor 12CaO·7Al2O3 consisting of subnanometer‐sized cages (see Figure inset) have been fabricated and their light‐induced insulator–conductor conversion is described. Microporous Crystal 12CaO ‚ 7Al 2 O 3 Encaging Abundant O -Radicals Katsuro Hayashi Masahiro Hirano Satoru Matsuishi † and Hideo Hosono † Hosono Transparent Electroacti V e Materials Project ERATO Japan Science and Technology Corporation KSP C-1232 3-2-1 Sakado Takatsu-ku Kawasaki Japan

Microporous crystal 12CaO x 7Al(2)O(3) encaging abundant O

Request PDF Microporous crystal 12CaO x 7Al(2)O(3) encaging abundant O(-) radicals Extremely high concentrations (>1020 cm-3) of active oxygenic radicals O- and O2- have been created in the A periodic first principle study to design microporous crystal 12MO 7Al 2 O 3 for selective and active O − radicals encaging Chemical Physics Letters 2004 390 4–6 335 339 10.1016/j.cplett.2004.04.040 2-s2. 14 Bi S. W. Tong Z. F. Li H. L. Yang Y. H. Leaching kinetics of calcium aluminate slag The Chinese Journal of Process

Phase Equilibria in the System Al2O3-CaO-CoO and Gibbs

Nov 21 2008 · An isothermal section of the system Al 2 O 3-CaO-CoO at 1500 K has been established by equilibrating 22 samples S. Matsuishi and H. Hosono 2002 Microporous Crystal 12CaO.7Al 2 O 3 Encaging Abundant O J. F. Vente and P 2002 Quintana Sub-solidus Phase Equilibria in the System CaO-Al 2 O 3-CoO and the Crystal Structure of Novel Ca 3 CoAl ChemInform Abstract Microporous Crystal 12CaO 7Al2O3 Encaging Abundant O- Radicals more Formation and quantification of peroxide anions in nanocages of 12CaO·7Al2O3 more Light-induced conversion of an insulating refractory oxide into a persistent electronic conductor more

Electride support boosts nitrogen dissociation over

Hayashi K. Hirano M. Matsuishi S. Hosono H. Microporous crystal 12CaO·7Al 2 O 3 encaging abundant O- radicals. J. Am. Chem. Soc. 124 738–739 (2002) . Fujita S. et al. . Oxidative destruction of hydrocarbons on a new zeolite-like crystal of Ca 12 Al 10 Si 4 O 35 including O 2 − and O 2 2− radicals. Chem. Mater. 15 255–263 (2003) . The crystal structure of 12CaO·7Al 2 O 3 has been widely researched because of its unique nanoporous framework but all of the works are in the fields of material and cement 1013

Phase transitions in mayenite SpringerLink

Abstract. This paper was devoted to explanation of the phase transitions nature in Ca 12 Al 14 O 33±δ which were studied by a combination of methods simultaneous thermal analysis high-temperature X-ray diffraction analysis Raman spectroscopy. One of the phase transitions is assumed to be connected with peroxide ions appearance/disappearance in mayenite at 922 K. A periodic first principle study to design microporous crystal 12MO 7Al2O3 for selective and active O− radicals encaging June 2004 Chemical Physics Letters 390(4-6)

Electride support boosts nitrogen dissociation over

Microporous Crystal 12CaO·7Al 2 O 3 Encaging Abundant O -Radicals journal February 2002 Hayashi Katsuro Hirano Masahiro Matsuishi Satoru Journal of Microporous Crystal 12CaO·7Al2O3 Encaging Abundant O- Radicals A Triazolopyrimidine-Based Dihydroorotate Dehydrogenase Inhibitor with Improved Drug-like Properties for Treatment and Prevention of Malaria Resolving the Role of Lipoxygenases in the Initiation and Execution of Ferroptosis