A型和X型分子筛储氢性能研究

Zeolites A and X as Media for Hydrogen Storage

沸石分子筛是一种笼型孔洞骨架晶体，脱水后空间十分丰富，具有很大的内表面积，可以吸附相当数量的吸附质。A型、X型分子筛具有不同的孔免结构和组成，采用P-C-T储氢装置研究了它们在低温（77K）下的储氢性能，结果表明：沸石分子筛储氢性能受骨架结构、孔客积、孔径大小的影响很大，阳离子的不同也会引起分子筛储氢性能的变化，其中A型分子筛孔口较小影响尤为显著。

Zeolites as media for hydrogen storage was based on its abundant of cavities, They encompass rage of different pore geometries and composition. We have investigated the use of zeolites A and X as hydrogen storage materials at 77 K at P-C-T setup. The results showed that the hydrogen uptake in zeolites is dependent upon framework, the size of cavities. In zeolites,a pore blocking by large cations is a major factor restricting hydrogen uptake.