通过 MOF 玻璃膜的气体输送机制

Advanced Membranes Pub Date : 2024-01-01 DOI:10.1016/j.advmem.2024.100104

Huan Liu , Huanni Xia , Rui Yao , Jianqiao Hu , Lifeng Zhang , Hua Jin , Yanshuo Li

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引用次数: 0

摘要

该研究首次对 MOF 玻璃膜的气体吸附和传输行为进行了深入研究。研究评估了 TIF-4 和 ZIF-62 玻璃膜在 298 K 和 313 K 之间的气体渗透性、吸附系数和扩散系数的温度依赖性。二氧化碳的渗透性由吸附过程主导，而 CH4 的传输则主要由活化扩散驱动。此外，MOF 玻璃膜在吸附过程中表现出显著的熵选择性，而在扩散过程中则表现出明显的焓选择性。

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Gas transport mechanisms through MOF glass membranes

The study provides an in-depth study on the gas adsorption and transport behaviors of MOF glass membranes for the first time. Temperature dependance of gas permeability, adsorption coefficients and diffusion coefficients between 298 K and 313 K for TIF-4 and ZIF-62 glass membrane were evaluated. The CO₂ permeability was dominated by the adsorption process, while CH₄ transport was mainly driven by the activated diffusion. Further, the MOF glass membranes exhibited significant entropic selectivity in adsorption, along with notable enthalpic selectivity in diffusion.

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来源期刊

Advanced Membranes

CiteScore

8.50

自引率

0.00%

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