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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >The crystal structure and surface energy of NaAlH4: A comparison of DFT methodologies
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The crystal structure and surface energy of NaAlH4: A comparison of DFT methodologies

机译:NaAlH4的晶体结构和表面能:DFT方法的比较

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This paper presents a comparison of the bulk structure, cleavage energies, and local densities of states of solid NaAlH4 calculated using several different density functional theory methodologies. Good agreement is obtained for the bulk crystal structure. Larger differences become apparent for the calculated surface energies and local densities of states. The (001) NaAlH4 surface is clearly identified as the most stable surface, followed by the (112) and (101) surfaces, with the (100) surface being the least stable. We present an analysis of the local density of states of atoms in the exposed NaAlH4 surface.
机译:本文介绍了使用几种不同的密度泛函理论方法计算得出的固体NaAlH4的本体结构,分裂能和局部态密度的比较。对于块状晶体结构获得了良好的一致性。对于计算出的表面能和状态的局部密度,更大的差异变得显而易见。显然(001)NaAlH4表面是最稳定的表面,其次是(112)和(101)表面,(100)表面的稳定性最差。我们目前对暴露的NaAlH4表面原子状态局部密度的分析。

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