摘要
研究了铝锡复合材料与纯水反应过程中的产氢特性。所提及的铝锡复合材料全部采用机械球磨的方法制备而成。不同成分复合材料的相组成和表面形貌分别用X射线衍射仪(XRD)和扫描电子显微镜(SEM)进行表征。研究结果表明,增加金属Sn的含量、提高起始反应温度、添加助磨剂NaCl和添加低熔点金属(Bi、In等),可以提高铝锡复合材料的活性,增加产氢量以及产氢速率。通过调整添加剂种类和添加量得到成分比例(质量分数)为Al-6%Sn-2%Bi-2%In的合金在25℃的水浴中水解30min的产氢量为785.6mL/g,最大产氢速率可以达到175mL/(min·g)。
The hydrogen production of aluminum-tin(Al-Sn)composites in pure water was studied in this paper.The aluminum-tin(Al-Sn)composites mentioned in this paper were made by mechanical alloying.X-ray diffraction(XRD)and scanning electron microscopy(SEM)were used for the phase composition and microstructure.The result shows that the hydrogen production and hydrogen generation rate of Al-Sn composites can be improved by increasing the Sn content,improving the initial water temperature,adding grinding aid(NaCl)and low melting point(Bi,In etc.)by improving the activity of Al-Sn composites.The optimized percentage(wt%)Al-6%Sn-2%Bi-2% In composite by adjusting the types and contents of additives shows higher hydrogen production and hydrogen production rate,which reaches 785.6 mL/g and 175 mL/(min·g)in the pure water at 25 ℃.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2017年第6期6203-6209,共7页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51375150)
关键词
铝锡复合材料
机械合金化
水解制氢
氢能
aluminum-tin composites
mechanical alloying
hydrogen generation by hydrolysis
hydrogen energy