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采用熔炼、轧制等加工手段,以Al、Sn为原料制备出一定厚度的Al-Sn箔片。该箔片与水反应能快速、高效地释放氢气。利用场发射扫描电镜和X射线衍射仪对其表面形貌和结构进行了表征,同时分析了其与水的反应机理。结果表明,经轧制后的Al-Sn箔片形成了明显交替的层状结构,内部有大量的缺陷,具有良好的析氢性能,析氢速度随着Al、Sn配比的不同有着明显差异。在所有样品中,每克材料最大析氢量能达到544.44 mL,符合析氢材料的国家标准,且反应产物为Al(OH)_3,能够回收利用,因此具有十分广阔的实际应用前景。
Melting, rolling and other processing methods to Al, Sn as raw material to prepare a certain thickness of Al-Sn foil. The foil reacts with water to release hydrogen quickly and efficiently. The morphology and structure of the surface were characterized by field emission scanning electron microscopy and X-ray diffraction, and the reaction mechanism with water was also analyzed. The results show that the Al-Sn flake has obvious layered structure with a large number of defects and has good hydrogen evolution performance. The hydrogen evolution rate has obvious difference with the ratio of Al and Sn. In all the samples, the maximum hydrogen yield per gram of material can reach 544.44 mL, which is in line with the national standard of hydrogen evolution materials and the reaction product is Al (OH) _3, which can be recycled. Therefore, it has a very broad practical application prospect.