Subsolidus phase diagram of the binary system (n-C n H2n+1NH3)2CoCl4 |
| |
Authors: | Bei Ruan Kezhong Wu Biyan Ren Tiechen Han Xiaodi Liu Jianjun Zhang |
| |
Affiliation: | 1. Department of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050016, China 2. Department of Physical Chemistry, University of Science and Technology of Beijing, Beijing, 100083, China
|
| |
Abstract: | The perovskite-type layered compounds decylammonium tetrachlorocobaltate (n-C10H21NH3)2CoCl4 and dodecylammonium tetrachlorocobaltate (n-C12H25NH3)2CoCl4 exist the solid–solid phase transition in the temperatures range 330–380 K. These laminar materials contain bilayers sandwiched between metal halide layers. The experimental subsolidus binary phase diagram of (n-C10H21NH3)2CoCl4–(n-C12H25NH3)2CoCl4 has been established over the whole composition range by differential thermal analysis and X-ray diffraction. In the phase diagram, one intermediate compound (n-C10H21NH3) (n-C12H25NH3)CoCl4 at $ W_{{{text{C}}_{ 1 0} {text{Co}}}} % = 50. 9 2 $ and two eutectoid invariants points at $ W_{{{text{C}}_{ 10} {text{Co}}}} % = 2 9. 8 3 $ and $ W_{{{text{C}}_{ 10} {text{Co}}}} % = 7 7. 9 8 $ were observed, two eutectoids temperatures are about 343 ± 1 and 340 ± 1 K. There are three noticeable solid solution ranges (α, β, γ) at the left and right boundary and middle of the phase diagram. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|