摘要
A storage and emission functional material of [Ca24Al28O64]^4＋·（Cl^-）3.80（O^2-）0.10 （C12A7-Cl^-）, was prepared by the solid-state reactions of CaCO3, γ-Al2O3, and CaCl2 in Cl2/Ar mixture atmosphere. The anionic species stored in the C12A7-Cl^- material were dominated by Cl^-, about （2.21±0.24） × 10^21 cm^-3, accompanied by a small amount of O^2-, O^-, and O2^-, measured via ion chromatography, electron paramagnetic resonance, and raman spectra measurements. These results also corroborate identification of time-of-flight mass spectroscopy--the anionic species emitted from the C12A7-Cl^- surface were dominated by the Cl^- （about 90%） together with a small amount of O^- and electrons. The structure and morphological alterations of the material were investigated via X-ray diffraction and field emission scanning electron microscope, respectively.
基金
ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.50772107）, the National High Tech Research and Development Program （No.2009AA05Z435）, and the National Basic Research Program （No.2007CB210206） of Ministry of Science and Technology of China.
