Preparation and Characterization of Storage and Emission Functional Material of Chlorine Anion: Ca₂₄Al₂₈O₆₄⁴⁺·(Cl^-)_3.80(O^2-)_0.10

A storage and emission functional material of Ca₂₄Al₂₈O₆₄⁴⁺·(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)×10²¹ cm^-3, accompanied by a small amount of O^2-, O^-,, and O^2-, 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.