H2/D2 separation in gas chromatography through a MOF-on-MOF strategy using γ-AlOOH@Al(OH)(1,4-NDC)@ZIF-67 as the stationary phase via additive effects of chemical affinity quantum sieving and kinetic sieving

被引：5

作者：

Ping, Enming ^{[1
]}

Kong, Lingyun ^{[1
]}

Liu, Mengyao ^{[1
]}

Zhou, Yunshan ^{[1
]}

Zhang, Lijuan ^{[1
]}

Chen, Nan ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Coll Chem, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

DALTON TRANSACTIONS | 2023年 / 52卷 / 02期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN ISOTOPE-SEPARATION; METAL-ORGANIC FRAMEWORKS; GAMMA-ALUMINA; SOLID CHROMATOGRAPHY; SELECTIVE ADSORPTION; TRANSITION; MEMBRANES; MIXTURES; CAPACITY; NANORODS;

D O I：

10.1039/d2dt03635e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of porous gamma-Al2O3 particles acting as both a sacrificial template and an aluminum source with 1,4-naphthalene diacid (H2NDC) resulted in the formation of gamma-AlOOH@Al(OH)(1,4-NDC) composites, in which ZIF-67 was then loaded by the in situ crystallization method, leading to the formation of gamma-AlOOH@Al(OH)(1,4-NDC)@ZIF-67 composites. The deliberately designed composite was used to separate H-2/D-2 at 77 K in a 1 m chromatographic column. The results demonstrated that the optimized composite can achieve the effective separation of H-2/D-2 in gas chromatography due to the additive effects of kinetic sieving and chemical affinity quantum sieving of Al(OH)(1,4-NDC) and ZIF-67. By optimizing chromatographic separation conditions, the resolution R reached 2.02 with the separation time t = 7.72 min. The composite also showed satisfactory repeatability and reproducibility.

引用

页码：376 / 383

页数：8

共 59 条

[1] MOLECULAR-TRANSPORT IN SUBNANOMETER PORES - ZERO-POINT ENERGY, REDUCED DIMENSIONALITY AND QUANTUM SIEVING [J].