1. Synthesis and characterization of high-purity micro-spherical (NH 4 ) 2 RuCl 6 particles using chemical separation combined with spray dried techniques
- Author
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Zena Xin, Zhao Panchao, Jialin Chen, and Wei Yi
- Subjects
010302 applied physics ,Spray dried ,Morphology (linguistics) ,Precipitation (chemistry) ,Chemistry ,General Chemical Engineering ,Analytical chemistry ,Chemical separation method ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Characterization (materials science) ,Chemical separation ,Scientific method ,Spray drying ,0103 physical sciences ,0210 nano-technology - Abstract
(NH 4 ) 2 RuCl 6 is one of the most important precursors for the preparation of Ru powder with high-purity requirement. In this study, high-purity (> 99.999 wt%) micro-spherical (from 2.3 to 10.4 μm) (NH 4 ) 2 RuCl 6 particles with controllable surface were synthesized by chemical separation method combined with spray drying process. After the chemical separation, high-purity (NH 4 ) 2 RuCl 6 precipitation was achieved, while the morphology, size and surface of (NH 4 ) 2 RuCl 6 particles were controlled by the spray drying process. The detailed influencing mechanisms of spray drying process, including gas/liquid rate, drying temperature and solution concentration, were investigated. Both gas/liquid rate and drying temperature influence the morphology and size of spray dried particles, while solution concentration is directly proportional to size of spray dried particles. It should be noted that the powder technology in this study could be applied to synthesize other high-purity spherical particles.
- Published
- 2017