Characterization of the CaCl2EuCl2 and CaCl2SrCl2 systems by X-ray powder diffraction

Ammonia Absorption into Alkaline Earth Metal Halide Mixtures as an Ammonia Storage Material

“…This also indicates that CaCl 2 −SrCl 2 (523) prepared by the aqueous solution-mixing method does not make a solid solution but does separate the two phases: the Ca and Sr species. However, the combination of this halide mixture has been reported to form a corresponding solid solution by the comelting method, yielding a crystal structure of the SrI 2 -type. , …”

“…However, the combination of this halide mixture has been reported to form a corresponding solid solution by the comelting method, yielding a crystal structure of the SrI 2 -type. 11,12 The XRD patterns of CaCl The XRD patterns of SrCl 2 (523), SrBr 2 (523), and SrCl 2 -SrBr 2 (523) are shown in Figure 5. The diffraction peaks of SrCl 2 -SrBr 2 (523) (Figure 5b) were quite different from those of authentic SrCl 2 (523) (Figure 5a; SrCl 2 as the actual form) and SrBr 2 (523) (Figure 5c; SrBr 2 as the actual form).…”

“…Several kinds of halide mixtures have been studied from the structural viewpoint [11][12][13][14][15][16][17] and also for ammonia absorption in a chemical heat pump. 18 Two methods of preparing halide mixtures have been applied: the comelting method [11][12][13][14][15][16][17] and the solution-mixing method. 18 The former method requires high temperatures near the melting point of the components, which is not practical for conventional use.…”

“…Several kinds of halide mixtures have been studied from the structural viewpoint − and also for ammonia absorption in a chemical heat pump . Two methods of preparing halide mixtures have been applied: the comelting method 11-17 and the solution-mixing method…”