金属离子作用下水分子吸附氢气能力的研究The Research on Adsorption Hydrogen Ability of Water Interact with Metal Ion
袁超,陈楚,张军
摘要(Abstract):
利用基于密度泛函理论(DFT)的第一性原理方法计算并研究了金属离子和水分子的相互作用(M:nH2O,其中M=Li+,Mg2+,Ca2+,和Al3+,n=1~8),同时也讨论了不同数量氢分子与M:nH2O复合物的相互作用(即M:nH2O:2nH2).当金属离子和水分子相互作用,水分子被极化,水的极性增强,极大增强了金属离子的储氢能力.实验上发现Mg2+离子在苯环上吸附三个水分子能形成一种稳定结构,其储氢能力能达到10wt%以上.
关键词(KeyWords): 储氢;密度泛函理论;金属离子
基金项目(Foundation):
作者(Author): 袁超,陈楚,张军
参考文献(References):
- [1]Brenda J,Michael C M,Anshuman K.Hydrogen:the energy source for the 21st century[J].Technovation,2005,25:569-585.
- [2]Parmaliana A,Crisafulli C,Maggiore R,et al.Catalytic activity of honeycomb catalysts,I.The benzene-cyclohexane(de)hydrogenation reaction[J].React Kinet Catal Lett,1981,18:295-299.
- [3]周理.碳基材料吸附储氢原理及规模化应用前景[J].材料导报,2000,18:3-5.
- [4]谢衍生,孙岳明,等.储氢材料研究的发展概况[J].材料导报,2004,5:76-78.
- [5]雷永泉,万群,石永康.新能源材料[M].北京:化学工业出版社,2003,231-261.
- [6]Prashant V K.Meeting the Clean Energy Demand:Nanostructure Architectures for Solar Energy Conversion[J].J PhysChem C,2007,7:2834-2860.
- [7]孙大林,等.新兴储氢材料研究的最新动态[J].材料导报,2004,18:272-275.
- [8]鲍德佑.氢能的最新发展[J].新能源,1994,16(3):1-3.
- [9]Ye Y,Ahn C C,Witham C,et al.Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes[J].ApplPhys Lett,1999,74:2307-2309.
- [10]Wang Q Y,Johnson J K.Optimization of carbon nanotube arrays for hydrogen adsorption[J].J Phys Chem B,1999,103:4809-4813.
- [11]Iijima S.Helical microtubules of graphitic carbon[J].Nature,1991,354:56-58.
- [12]Dillon A C,Jones K M,Bekkedahl T A,et al.Storage of hydrogen in single-walled carbon nanotubes[J].Nature,1997,386(27):377-379.
- [13]Chen P,Wu X,Lin J,et al.High H2uptake by alkali-doped carbon nanotubes under ambient pressure and moderatetemperatures[J].Science,1999,285:91-93.
- [14]Liu C,Fan Y Y,Liu M,et al.Hydrogen storage in single-walled carbon nanotubes at room temperature[J].Science,1999,286(5):1127-1129.
- [15]Vos W L,Finger L W,Hemley R J,et al.Novel H2-H2O Clathrates at high pressure[J].Phys Rev Lett,1993,71:3150-3153.
- [16]Yoon M,Yang S,et al.Charged Fullerenes as High-Capacity Hydrogen Storage Media[J].Nano Lett,2007,7(9):2578-2583.
- [17]Kohn W,Sham L J.Self-consistent equations including exchange and correlation effects[J].Phys Rev A,1965,140:1133-1138.
- [18]Lee H M,Tarakeshwar P,Park J,et al.Insights into the Structures,Energetics,and Vibrations of Monovalent Cation-(Water)1-6 Clusters[J].J Phys Chem A,2004,108(15),2949-2958.
- [19]Muller I B,Cederbaum L S,Tarantelli F.Global minima and energetics of Li+(H2O)n and Ca2+(H2O)n clusters for n20[J].J Phys Chem A,2004,108:1857-1863.
- [20]Lyubartsev A P,Laasonen K,LaaKonen A.An ab initio study of water molecules in the bromide ion solvation shell[J].JChem Phys,2001,114:3120-3126.
- [21]Howel I,Neilson G W.Hydration in concentrated aqueous solution[J].J Phys Condens Matter,1996,8:4455-4460.
- [22]Chandrakumar K R S,Ghosh S K.Electrostatics driven interaction of dihydrogen with-block metal cation:theoreticalprediction of stable MH16 complex[J].Chem Phys Lett,2007,447:208-214.
- [23]Tuhina A M,Sourav S P,A model study of effect of M=Li+,Na+,Be2+,Mg2+,and Al3+ion decoration on hydrogenadsorption of metal-organic framework-5[J].J Hydrogen Energy,2010,8:1-12.
- [24]Eddaoudi M,Li H,Reineke T,et al.Design and synthesis of metal-organic frameworks with permanent microporosity[J].Top Catal,1999,9:105-111.