Hydrogen storage in metal-organic frameworks by bridged hydrogen spillover
Hydrogen storage in metal-organic frameworks by bridged hydrogen spillover
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DOI：
10.1021/ja061681m
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发表时间：
2006-06-28
影响因子：
15
通讯作者：
Yang, Ralph T.
中科院分区：
文献类型：
--
作者：
Li, Yingwei;Yang, Ralph T.
由于缺乏可行的储氢系统，氢作为燃料电池汽车能源的可能利用受到限制。金属-有机框架（mof）属于一类新的微孔材料，最近被证明是储氢的潜在候选者；然而，在环境温度下，mof并没有取得显著的储氢能力。在这里，我们报告了通过使用一种导致和促进氢溢出的简单技术，改性mof的储氢能力大大提高。因此，改良的IRMOF-8在室温和100 atm下的储存量为4wt %。吸附是可逆的，吸附速率快。这使得mof在储氢方面的应用前景非常光明。
The possible utilization of hydrogen as the energy source for fuel-cell vehicles is limited by the lack of a viable hydrogen storage system. Metal−organic frameworks (MOFs) belong to a new class of microporous materials that have recently been shown to be potential candidates for hydrogen storage; however, no significant hydrogen storage capacity has been achieved in MOFs at ambient temperature. Here we report substantially increased hydrogen storage capacities of modified MOFs by using a simple technique that causes and facilitates hydrogen spillover. Thus, the storage of 4 wt % is achieved at room temperature and 100 atm for the modified IRMOF-8. The adsorption is reversible, and the rates are fast. That has made MOFs truly promising for hydrogen storage application.