硼氢化钠水解制氢催化剂优化的实验研究  

EXPERIMENTAL STUDY ABOUT OPTIMIZATION OF CATALYST ON HYDROGEN GENERATION BY HYDROLYSIS OF SODIUM BOROHYDRIDE

作　　者：王勇[1] 彭跃进[1] 刘志祥[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《太阳能学报》2016年第11期2772-2777,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51177138;61473238;51407146);高等学校博士学科点专项科研基金(20120184120011);国家科技支撑计划(2014BAG08B01)

摘　　要：分别将氯化钴和柠檬酸作为硼氢化钠水解制氢的催化剂进行实验研究,结果发现,用氯化钴催化硼氢化钠制氢,单位质量产氢量较高,但反应速率较慢;用柠檬酸催化硼氢化钠制氢,单位质量产氢量偏低,但反应速率较快。基于上述实验结果,将氯化钴和柠檬酸按一定质量比混合作为硼氢化钠粉末水解制氢的催化剂进行制氢,结果发现,不仅其单位质量产氢量得到提高,而且其产氢速率也得到显著提升。因此,氯化钴和柠檬酸混合物作为催化剂时,获得产氢量高和产氢速度快的综合性能。This paper is mainly devoted to using sodium borohydride powder and a small amount of water for producing hydrogen . Through respectively, we researched hydrogen generation by NaBH4 hydrolysis on the cobalt chloride and citric acid as a catalyst. The results showed that with cobalt chloride catalyzed by sodium borohydride hydrogen production, production of hydrogen unit quality is higher, but the reaction rate is slower; citric acid catalyzed by sodium borohydride hydrogen production, hydrogen production unit quality is low, but the faster reaction rate. Based on the above results, we will cobalt chloride and citric acid according to a certain mass ratio as the catalyst of sodium borohydride hydrolysis hydrogen production by powder of hydrogen production, results found that not only the unit mass of hydrogen production was improved, and the hydrogen production rate can be significantly improved. Therefore, use of cobalt chloride and citric acid mixture as catalyst, obtained a high hydrogen yield and hydrogen yield fast comprehensive performance, practical significance.

关 键 词：硼氢化钠 制氢 氯化钴 柠檬酸 

分 类 号：TK91[动力工程及工程热物理]