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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Increased performance of hydrogen storage by Pd-treated LaNi_(4.7)Al_(0.3), CaNi_5 and Mg_2Ni
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Increased performance of hydrogen storage by Pd-treated LaNi_(4.7)Al_(0.3), CaNi_5 and Mg_2Ni

机译：Pd处理的LaNi_（4.7）Al_（0.3），CaNi_5和Mg_2Ni提高了储氢性能

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摘要

In this study, a palladium treatment of LaNi_(4.7)Al_(0.3), CaNi_5 and Mg_2Ni is demonstrated to greatly improve the hydrogen storage performance of these intermetallic alloys. Mechanical grinding a small amount of palladium with the hydrogen storage alloys can lower the activation pressures to sub-atmospheric level at room temperature and significantly increase hydrogen absorption/desorption rates without changing the PCI behaviors. The PCI behavior of the palladium treated alloys was determined by a straight forward rule of mixtures calculations. The addition of palladium helps the disassociation of molecular hydrogen, and the mechanism of the treatment on the activation and hydrogen absorption/desorption of the alloys can be explained by hydrogen spillover for the absorption process and reverse hydrogen spillover for the desorption process.
机译：在这项研究中，LaNi_（4.7）Al_（0.3），CaNi_5和Mg_2Ni的钯处理被证明可以大大提高这些金属间合金的储氢性能。用储氢合金机械研磨少量钯可以在室温下将活化压力降低至低于大气压，并显着提高氢的吸收/解吸速率，而不会改变PCI行为。钯处理合金的PCI行为由混合物计算的直接规则确定。钯的添加有助于分子氢的离解，并且该合金的活化和氢吸收/解吸的处理机理可以通过吸收过程中的氢溢出和解吸过程中的反向氢溢出来解释。

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