Fine-Tuning a Robust Metal-Organic Framework Toward Enhanced Clean Energy Gas Storage

Zhijie Chen, Mohammad Mian, Seung-Joon Lee, Haoyuan Chen, Xuan Zhang, Kent Kirilikovali, Sarah Shulda, Patrick Melix, Andew Rosen, Philip Parilla, Thomas Gennett, Randall Snurr, Timur Islamoglu, Taner Yildirim, Omar Farha

Research output: Contribution to journalArticlepeer-review

87 Scopus Citations

Abstract

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.

Original languageAmerican English
Pages (from-to)18838-18843
Number of pages6
JournalJournal of the American Chemical Society
Volume143
Issue number45
DOIs
StatePublished - 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society.

NREL Publication Number

  • NREL/JA-5900-81274

Keywords

  • hydrogen storage
  • methane storage

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