论文部分内容阅读
通过机械合金化技术制备了含镓和铟的铝合金,研究该合金与纯水之间的水解反应来考察氢产率的变化。X射线衍射、扫描电镜与能谱分析结果表明,镓和铟元素分别主要以溶解与沉积相的形式存在于合金之中。溶解的镓和铟通过增强水解反应活性来提高铝合金的产氢率。此外,由球磨时间决定的沉积相的数量及分布也会直接影响合金的产氢率,具有均匀分布及合适数量沉积相的铝合金能与0℃水反应产生1132.8 mL/g的氢气。
The aluminum alloys containing gallium and indium were prepared by mechanical alloying technique, and the change of hydrogen yield was investigated by studying the hydrolysis reaction between the alloy and pure water. X-ray diffraction, scanning electron microscopy and energy spectrum analysis show that the gallium and indium elements exist mainly in the form of dissolved and sedimentary phases respectively in the alloy. Dissolved gallium and indium increase the hydrogen production rate of the aluminum alloy by enhancing the hydrolytic reactivity. In addition, the amount and distribution of sedimentary facies determined by the ball milling time also have a direct effect on the hydrogen production rate of the alloy. Aluminum alloys with a uniform distribution and a suitable deposition phase can react with 0 ° C water to produce 1132.8 mL / g of hydrogen.