Crystal Structure and NH3 Desorption Properties of Complex Metal Ammine Chloride

被引：3
|
作者：
Kishida, Yoshihiro [1 ]
Aoki, Masakazu [1 ]
Yamauchi, Takafumi [1 ]
机构：
[1] Toyota Cent Res & Dev Labs Inc, 41-1 Yokomichi, Nagakute, Aichi 4801192, Japan
来源：
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 2019年 / 52卷 / 02期
关键词：
Metal Halide; Ca0.5Sr0.5(NH3)(8)Cl-2; Ammonia Desorption Properties; NH3; Carrier; Crystal Structure; HYDROGEN-STORAGE MATERIALS; AMMONIA; MOBILE;
D O I：
10.1252/jcej.18we161
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Metal halides are promising ammonia (NH3) absorption/desorption materials for hydrogen energy transport. In this study, a new NH3 carrier material, Ca-0.5,Sr-0.5 (NH3)(8)Cl-2, was synthesized, and its crystal structure and NH3 desorption properties were analyzed. The crystal structure of the new material was orthorhombic (space group: Pnma) at 296 +/- 2K, and was similar to those of Ca(NH3)(8)Cl-2 and Sr(NH3)(8)Cl-2. Its crystal volume was intermediate between those of Ca(NH3)(8)Cl-2 and Sr(NH3)(8)Cl-2, and its NH3 desorption equilibrium pressure (490kPa) was also intermediate between those of Ca(NH3)Cl-2 (583 kPa) and Sr(NH3)(8)Cl-2 (420 kPa) at 342 K. Thus, the NH3 desorption properties of Ca1-xSrx(NH3)(8)Cl-2 may be controlled by varying the value of x.
引用
收藏
页码：239 / 242
页数：4
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