铝汞合金体系常温水解制氢技术

被引：2

作者：

范美强 ^{[1
,2
]}

徐芬 ^{[1
]}

孙立贤 ^{[1
]}

机构：

[1] 中国科学院大连化学物理研究所

[2] 中国计量学院

来源：

电源技术 | 2009年 / 33卷 / 08期

关键词：

铝-汞合金; 活化; 球磨;

D O I：

暂无

中图分类号：

TQ116.2 [氢气];

学科分类号：

0817 ;

摘要：

利用机械混合法制备了铝汞合金体系。该类合金具有很强的化学活性,在常温下与水反应迅速生成氢气,氢气产量接近理论值。如Al-5%Hg合金水解产生1175mL/g氢气,氢气产率为99%。考察了添加剂(Zn、NaCl)及球磨时间对铝-汞合金化学活性的影响。结果表明:锌部分取代汞,使铝汞合金的活性降低,且随Al-Hg-Zn合金中锌含量的增加,合金水解产氢气量降低,由1059mL/g(Al-9%Hg-1%Zn)降到427mL/g(Al-5%Hg-5%Zn);但盐的加入,迅速加快了合金水解速率,从238mL/(min·g)(Al-10%Hg)增加到457mL/(min·g)(Al-5%Hg-5%NaCl)]。以Al-9%Hg-1%NaCl合金为研究对象,球磨时间由1h延长到2h,其Al-9%Hg-1%NaCl合金的水解速率有所提高,但进一步延长球磨时间,反而降低了铝合金的活性,表明球磨时间对铝汞合金的性能有一定的影响。

引用

页码：683 / 686

页数：4

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