Hydrogen generation through rolling using Al-Sn alloy

作者：Hu, Xiaoyang; Zhu, Guizhi; Zhang, Yingjiu^*; Wang, Yongming; Gu, Mengsen; Yang, Sheng; Song, Pingxin; Li, Xinjian; Fang, Haijiang; Jiang, Guosheng; Wang, Zhifa

来源：International Journal of Hydrogen Energy, 2012, 37(15): 11012-11020.

DOI：10.1016/j.ijhydene.2012.04.141

• Al-Sn alloy
• Hydrogen generation
• Rolling
• Carbon nanotubes
• Composite

Mechanically treated aluminum-tin (Al-Sn) alloy, a novel hydrogen-generating material, was fabricated and found to react directly and immediately with water at room temperature. The maximum yield of hydrogen per unit volume of alloy was 2259 mL/cm(3) (0.202 g/cm(3)). The mass ratio of the generated hydrogen and the Al-Sn alloy material was 4.86%. This percentage is much higher than that of traditional hydrogen storage alloys and can compete with metal hydrides. The combination of Al-Sn alloy powder and carbon nanotubes (CNTs) produced a new kind of Al-Sn/CNT composite that also reacts with water at room temperature. Al-Sn/CNT composites were synthesized using a high temperature and high-pressure method. When CNT content was held constant, composites with single-walled CNTs had higher reaction rates than those with multi-walled CNTs. The effects of mechanical treatment and CNT addition on enhancing the reaction between Al-Sn alloys or Al-Sn/CNTs and water were also analysed.

• 出版日期2012-8
• 单位中南大学; 郑州大学