Effects of different temperatures and additives on the metastable zone width precipitation kinetics of NaBO2

被引：18
|
作者：
Kaya, Mustafa [1 ]
Ceyhan, Ayhan Abdullah [2 ]
Sahin, Omer [1 ]
机构：
[1] Siirt Univ, Dept Chem Engn, Siirt, Turkey
[2] Selcuk Univ, Dept Chem Engn, Konya, Turkey
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2014年 / 88卷 / 03期
关键词：
sodium metaborate; sodium borohydride; nucleation; metastable zone width; impurities; SODIUM-BOROHYDRIDE; HYDROGEN STORAGE; ENERGY;
D O I：
10.1134/S0036024414030182
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, the sodium metaborate, which is applicable in various industrial areas, and its metastable zone width that is very important for its production by crystallization, and its nucleation are investigated to obtain the necessary thermodynamic parameters. The polythermal and isothermal method has been used for the measurement of metastable zone width. Metastable zone width of NaBO2 has found at 9A degrees C at average and cooling rate do not have any effect on it. In addition, the effect of sodium metaborate on the hydrogen storage capacity of sodium borohyride solutions that is known as one of the best hydrogen sources today is investigated at the various concentrations of sodium borohyride in the medium. Results have shown that three different areas emerged as the percentage of NaBH4 in the solution increased.
引用
收藏
页码：402 / 408
页数：7
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