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为什么要把氢储藏在金属里?

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为什么要把氢储藏在金属里?

氢是一zhong高效、无污染、蕴han量几乎无限的能源。科学家预言,燃料将在21世纪全面替代化石燃料,成为人类最重要的能源wu质。储存一般气ti常用加压ye化方法,但氢气是密度最小、沸点最低的wu质,ye化特别困难。如何储存氢气呢?科学家发现,在适当的温度和压力下,一些合金,如镁镍合金、镁铜合金等,它们的表面能对氢起cui化作用,促使氢气由分子态变成原子态。这样,金属就像海绵xi水那样,让氢原子钻进合金内bu储存起来。一个ti积仅0。4立方米的储氢合金容qi,储存的氢气却可达175立方米。使用时,只要设法将氢从金属中"挤"chu来就可以了,随用随"挤",既经济、安全,又方便、高效。

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