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Al-Li_3AlH_6: A novel composite with high activity for hydrogen generation

机译：Al-Li_3AlH_6：新型高效的制氢复合材料

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摘要

A novel matenal for hydrogen generation with high capacity of H_2 generation has been successfully prepared by ball milling the mixture of Al and home-made fresh Li_3AlH_6 powder. Its theoretical capacity of hydrogen released is higher than that of pure Al. Results obtained have shown conversion efficiency of AI-Li_3AlH_6 composite can be close to 100% by increasing the content of Li_3AlH_6. When the content of Li_3AlH_6 is 20 wt%, the maximum hydrogen generation rate and hydrogen yield are 2737.6 mL g~(-1) min~(-1) and 1513.1 mL g~(-1) respectively, at room temperature. By XRD, SEM analyses and reaction heat measurements, it demonstrates that the additive Li_3AlH_6 can provide an additional source of H_2 and an alkaline environment (LiOH) as well as additional heat to promote the Al/H_2O reaction. Therefore, the Al-Li_3AlH_6 composite has a very high activity and high capacity of hydrogen released.
机译：通过球磨Al与自制的新鲜Li_3AlH_6粉末的混合物，成功制备了具有高H_2生成能力的新型氢生成材料。其释放的氢的理论容量高于纯Al的理论容量。获得的结果表明，通过增加Li_3AlH_6的含量，AI-Li_3AlH_6复合材料的转化效率可以接近100％。 Li_3AlH_6的含量为20 wt％时，室温下的最大氢生成速率和氢产率分别为2737.6 mL g〜（-1）min〜（-1）和1513.1 mL g〜（-1）。通过XRD，SEM分析和反应热测量，表明添加剂Li_3AlH_6可以提供额外的H_2源和碱性环境（LiOH），以及额外的热量来促进Al / H_2O反应。因此，Al-Li_3AlH_6复合材料具有很高的活性和很高的释放氢的能力。

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  • 来源
    《International journal of hydrogen energy》 |2014年第20期|10392-10398|共7页
  • 作者

    Tao Wu; Fen Xu; Li-Xian Sun; Zhong Cao; Hai-Liang Chu; Yu-Jia Sun; Ling Wang; Pei-Hai Chen; Jiao Chen; Ying Pang; Yong-Jin Zou; Shu-Jun Qiu; Cui-Li Xiang; Huan-Zhi Zhang;

  • 作者单位

    School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China,School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    Department of Chemistry, Texas A&M University, 77843 TX, USA;

    College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;

    School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China;

    College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;

    College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

    School of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydrogen generation; Al-Li_3AlH_6 composite; Mechanism; Reaction heat;

    机译：氢气产生;Al-Li_3AlH_6复合材料;机制;反应热;
  • 入库时间 2022-08-18 00:24:11

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