氢气储存
化学
甲烷
重量分析
巴(单位)
金属有机骨架
吸附
氢
储能
碳捕获和储存(时间表)
化学工程
工艺工程
热力学
有机化学
气象学
功率(物理)
气候变化
工程类
物理
生物
生态学
作者
Zhijie Chen,Mohammad Rasel Mian,Seung-Joon Lee,Haoyuan Chen,Xuan Zhang,Kent O. Kirlikovali,Sarah Shulda,Patrick Melix,Andrew Rosen,Philip A. Parilla,Thomas Gennett,Randall Q. Snurr,Timur İslamoğlu,Taner Yildirim,Omar K. Farha
摘要
The development of adsorbents with molecular precision offers a promising strategy to enhance storage of hydrogen and methane─considered the fuel of the future and a transitional fuel, respectively─and to realize a carbon-neutral energy cycle. Herein we employ a postsynthetic modification strategy on a robust metal-organic framework (MOF), MFU-4l, to boost its storage capacity toward these clean energy gases. MFU-4l-Li displays one of the best volumetric deliverable hydrogen capacities of 50.2 g L-1 under combined temperature and pressure swing conditions (77 K/100 bar → 160 K/5 bar) while maintaining a moderately high gravimetric capacity of 9.4 wt %. Moreover, MFU-4l-Li demonstrates impressive methane storage performance with a 5-100 bar usable capacity of 251 cm3 (STP) cm-3 (0.38 g g-1) and 220 cm3 (STP) cm-3 (0.30 g g-1) at 270 and 296 K, respectively. Notably, these hydrogen and methane storage capacities are significantly improved compared to those of its isoreticular analogue, MFU-4l, and place MFU-4l-Li among the best MOF-based materials for this application.
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