镁氢化和镁镍共晶反应对氢化燃烧合成产物储氢性能的影响

通过改变氢化燃烧合成Mg2Ni中镁氢化反应的保温时间，以及镁镍合成反应温度和合成保温时间，来研究镁氢化反应、镁镍燃烧合成反应对产物Mg2Ni储氢性能的影响。实验结果表明，镁氢化反应保温120min时，产物的首次吸氢动力学性能变差；合成温度的提高有利于吸氢量的提高（合成温度850K时，吸氢量最大可达3．36wt％）；保温时间的延长对于产物吸氢量的影响随合成温度的差异而表现不同。

Effects of magnesium hydriding and magnesium-nickel eutectic reaction on hydriding combustion synthesis of Mg2Ni

The effects of the holding times of magnesium hydriding reaction and the synthesis temperatures on the hydriding combustion synthesis (HCS) of Mg_2Ni were studied by means of X-ray diffraction, scanning electron microscopy and hydriding kinetic measurement. The results show that the hydrogen storage capacity of Mg_2Ni increases obviously with the increasing synthesis temperature (the hydrogen storage capacity of the sample reaches 3.36wt% at synthesis temperature of 850 K). The influences of holding time during magnesium hydriding reaction vary with the different synthesis temperatures.