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近年来,材料和能源领域中高能量密度车载储氢材料的研究和开发吸引了世界各国科技工作者的广泛兴趣.MgH2作为一种相对廉价的固体储氢材料,其理论储氢量高达7.6 wt%,且循环吸放氢性能较好,业已成为储氢材料领域的研究热点.本文着重从热力学的角度,对MgH2储氢材料的近期研究进展,特别是其储氢热力学性能的改进,包括纳米化、复合、催化、限域以及理论计算等方面进行简要综述,旨在明确当今MgH2作为潜在可应用储氢材料的研究重点和未来发展趋势.
In recent years, the research and development of high energy density in-vehicle hydrogen storage materials in the field of materials and energy have attracted the widespread interest of scientists from all over the world.MHH2, as a relatively cheap solid hydrogen storage material, has a theoretical hydrogen storage capacity of up to 7.6 wt% , And the performance of hydrogen storage and desorption is good, which has become a research hotspot in the field of hydrogen storage materials.This paper focuses on the recent research progress of MgH2 hydrogen storage materials, especially the improvement of thermodynamic properties of hydrogen storage, including thermodynamics, , Synthesis, catalysis, confinement and theoretical calculation, aiming at clarifying the research focus and future development trend of MgH2 as a potential applicable hydrogen storage material today.