H2O-Functionalized Zeolitic Zn(2-methylimidazole)2 Framework (ZIF-8) for H2 Storage
H2O-Functionalized Zeolitic Zn(2-methylimidazole)2 Framework (ZIF-8) for H2 Storage
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DOI：
10.1021/jp507030g
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发表时间：
2014-09-25
影响因子：
3.7
通讯作者：
Hu, Yun Hang
中科院分区：
文献类型：
--
作者：
Cheng, Peifu;Hu, Yun Hang
一般认为，多孔材料上的H2O吸附会抑制H-2吸附。然而，本文报道了通过在室温下对ZIF-8进行简单的水处理而获得的稳定的H_2 O-官能化沸石Zn（2-甲基咪唑）_2骨架（ZIF-8）可以将其H_2吸附热从5.2 kJ/mol增加到10.1 kJ/mol。结果表明，室温下的可逆H2容量增加了77%。这表明H2O官能化提供了一种新的方法来增强ZIF-8和其他金属有机框架中的室温储氢。
It is generally recognized that H2O adsorption on a porous material would inhibit H-2 adsorption. However, this paper reports that stable H2O-fiinctionalized zeolitic Zn(2-methylimidazole)2 framework (ZIF-8), which was obtained by the simple water treatment of ZIF-8 at ambient temperature, can increase its H-2 adsorption heat from 5.2 to 10.1 kJ/mol. As a result, the reversible H-2 capacity at ambient temperature increased by 77%. This indicates that H2O functionalization provides a novel approach to enhance ambient-temperature hydrogen storage in ZIF-8 and other metal-organic frameworks.