1. 毕业设计（论文）的内容和要求

添加合金化元素制备镁基合金被认为是可以同时实现对镁基储氢材料的热力学和动力学双调控的重要改性手段。

金属间化合物吸氢后形成具有固定化学计量比的多元合金氢化物，其中mg2nih4，mg2coh5，mg2feh6 是一类符合18电子规则的三元合金氢化物，因其具有较高的储氢容量而受到广泛关注。

其中mg2nih4因具有较快的吸放氢动力学和较低的反应焓变（64.5 kj/mol），独特的结构（存在多种同质异构体）和电子特性而倍受青睐。

2. 参考文献

[1] H.-J. Lin, J.-J. Tang, Q. Yu, H. Wang, L.-Z. Ouyang, Y.-J. Zhao, J.-W. Liu, W.H. Wang, M. Zhu, Symbiotic CeH2.73/CeO2 catalyst: a novel hydrogen pump,Nano Energy 9 (2014) 80-87. [2] J. Cui, H. Wang, J. Liu, L. Ouyang, Q. Zhang, D. Sun, X. Yao, M. Zhu, Remarkable enhancement in dehydrogenation of MgH2 by a nano-coating of multivalence Ti-based catalysts, J. Mater. Chem. A 1 (2013) 5603. [3] H. Fu, W. Wu, Y. Dou, B. Liu, H. Li, Q. Peng, Hydrogen diffusion kinetics and structural integrity of superhigh pressure Mg-5 wt%Ni alloys with dendrite interface, J. Power Sources 320 (2016) 212-221. [4] H.J. Lin, L.Z. Ouyang, H. Wang, D.Q. Zhao, W.H. Wang, D.L. Sun, M. Zhu, Hydrogen storage properties of MgeCeeNi nanocomposite induced from amorphous precursor with the highest Mg content, Int. J. Hydrogen Energy 37 (2012) 14329-14335. [5] M. Yamasaki, M. Sasaki, M. Nishijima, K. Hiraga, Y. Kawamura, Formation of 14H long period stacking ordered structure and profuse stacking faults in MgeZneGd alloys during isothermal aging at high temperature, Acta Mater. 55 (2007) 6798-6805. [6] J. Yin, C. Lu, X. Ma, B. Dai, H.-L. Chen, Investigation of two-phase Mg-Gd-Ni alloys with highly sstable long period stacking ordered phases, Intermetallics 68 (2016) 63-70. [7] T. Fujimoto, S. Ogawa, T. Kanai, N. Uchiyama, T. Yoshida, S. Yagi, Hydrogen storage property of materials composed of Mg nanoparticles and Ni nanoparticles fabricated by gas evaporation method, Int. J. Hydrogen Energy 40 (2015) 11890-11894. [8] J. Cermak, B. David, Catalytic effect of Ni, Mg2Ni and Mg2NiH4 upon hydrogen desorption from MgH2, Int. J. Hydrogen Energy 36 (2011) 13614-13620. [9] X. Q. Tran, S. D. McDonald, Q. Gu, T. Yamamoto, K. Shigematsu, K. Aso, E. Tanaka, S. Matsumura, K. Nogita, In-situ investigation of the hydrogen release mechanism in bulk Mg2NiH4, J. Power Sources 341 (2017) 130-138. [10] T. Hongo, K. Edalati, M. Arita, J. Matsuda, E. Akiba, Z. Horita, Significance of grain boundaries and stacking faults on hydrogen storage properties of Mg2Ni intermetallics processed by high-pressure torsion, Acta Mater. 92 (2015) 46-54. [11] J. Matsuda, E. Akiba, Lattice defects in VeTi BCC alloys before and after hydrogenation, J. Alloys Compd. 581 (2013) 369-372. [12] H. Inui, T. Yamamoto, M. Hirota, M. Yamaguchi, Lattice defects introduced during hydrogen absorptionedesorption cycles and their effects on PeC characteristics in some intermetallic compounds, J. Alloys Compd. 330-332 (2002) 117-124. [13] D. Noreus, P.E. Werner, Structural studies of monoclinic Mg2NiD4, J. Less Common Metals 97 (1984) 215-222. [14] E. Woldt, The relationship between isothermal and non-isothermal description of Johnson-Meehl-Avrami-Kolmogorov kinetics, J. Phys. Chem. Solids 53 (1992) 521-527. [15] D. Balachandran, D. Morgan, G. Ceder, First principles study of H-insertion in MnO2, J. Solid State Chem. 166 (2002) 91-103. [16] J. Matsuda, K. Yoshida, Y. Sasaki, N. Uchiyama, E. Akiba, In situ observation on hydrogenation of Mg-Ni films using environmental transmission electron microscope with aberration correction, Appl. Phys. Lett. 105 (2014) 083903. [17] X.Q. Tran, S.D. McDonald, Q.F. Gu, K. Nogita, In-situ synchrotron X-ray diffraction investigation of the hydriding and dehydriding properties of a cast Mg-Ni alloy, J. Alloys Compd. 636 (2015) 249-256. [18] J. Cermak, L. Kral, Hydrogen diffusion in MgeH and MgeNieH alloys, Acta Mater. 56 (2008) 2677-2686. [19] Z. Gavra, M.H. Mintz, G. Kimmel, Z. Hadari, Allotropic transitions of magnesium nickel hydride (Mg2NiH4), Inorg. Chem. 18 (1979) 3595-3597. [20] J.J. Reilly, R.H. Wiswall Jr., The reaction of hydrogen with alloys of magnesium and nickel and the formation of Mg2NiH4, Inorg. Chem. 7 (1968) 2254-2256.

3. 毕业设计（论文）进程安排

2018.12.14-2018.12.31 中国期刊网、维普数据库以及外文数据库等数据库查阅国内外相关文献： 2019.1.1-2019.1.15 撰写开题报告及外文文献翻译，开题报告答辩； 2019.2.24-2019.4.24 Mg2NiH4和碳载镍催化剂的制备，样品储氢性能表征与测试； 2019.4.25-2019.5.10 中期检查与答辩； 2019.5.11-2019.5.19 针对前期实验进行完善，数据分析与处理； 2019.5.20-2019.5.31 撰写毕业论文； 2019.6.01-2019.6.14 完成毕业论文及答辩； 2018.6.15-2019.6.30 总结、归档