MOLECULAR-TRANSPORT IN SUBNANOMETER PORES - ZERO-POINT ENERGY, REDUCED DIMENSIONALITY AND QUANTUM SIEVING
MOLECULAR-TRANSPORT IN SUBNANOMETER PORES - ZERO-POINT ENERGY, REDUCED DIMENSIONALITY AND QUANTUM SIEVING
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DOI：
10.1016/0009-2614(94)01372-3
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发表时间：
1995-01-20
影响因子：
2.8
通讯作者：
KRYLOV, SY
中科院分区：
文献类型：
--
作者：
BEENAKKER, JJM;BORMAN, VD;KRYLOV, SY
在微孔材料中，如果孔径与分子硬核之间的差异与径向运动的德布罗意波长相比不再大，那么分子吸附和输运中的量子效应就变得重要起来。讨论了两个方面：径向自由度的冻结导致一维气体和零点能量过度补偿壁面吸引力的情况，在孔隙入口处形成能量屏障。在这两种情况下，材料都可以起到量子分子筛的作用。
In microporous materials quantum effects in molecular adsorption and transport become of importance if the difference between pore diameter and the molecular hard core is no longer large compared to the de Broglie wavelength of radial motion. Two aspects are discussed: the freezing of the radial degrees of freedom resulting in a one dimensional gas and the situation where the zero-point energy overcompensates the attraction of the walls, creating an energy barrier at the entrance of the pores. In both cases the material can act as a quantum molecular sieve.