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中文摘要：
利用强磁场下的氢化燃烧合成技术制备Mg-Ni氢化物。在等温和非等温条件下测试该氢化物的放氢动力学性能。利用一个新模型分析Mg-Ni氢化物的放氢动力学机理。结果显示,理论计算结果与实验数据吻合良好,尤其是在非等温条件下。Mg-Ni氢化物体系在放氢过程的控制步骤是氢原子在基体中的扩散。在6 T强磁场下合成的氢化物样品在等温和非等温条件下都具有最佳的放氢综合性能,并对其原因进行分析。
英文摘要：
The Mg-Ni hydride was prepared by hydriding combustion synthesis under a high magnetic field. The dehydriding kinetics of the hydrides was measured under the isothermal and non-isothermal conditions. A model was applied to analyzing the kinetics behavior of Mg-Ni hydride. The calculation results show that the theoretical value and the experimental data can reach a good agreement, especially in the case of non-isothermal dehydriding. The rate-controlling step is the diffusion of hydrogen atoms in the solid solution. The sample prepared under magnetic field of 6 T under the isothermal condition can reach the best performance. The similar tendency was observed under the non-isothermal condition and the reason was discussed.
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