Fine-tuning a robust metal-organic framework toward enhanced clean energy gas storage

Zhijie Chen, Mohammad Rasel Mian, Seung Joon Lee, Haoyuan Chen, Xuan Zhang, Kent O. Kirlikovali, Sarah Shulda, Patrick Melix, Andrew S. Rosen, Philip A. Parilla, Thomas Gennett, Randall Q. Snurr, Timur Islamoglu*, Taner Yildirim, Omar K. Farha

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 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 languageEnglish (US)
Pages (from-to)18838-18843
Number of pages6
JournalJournal of the American Chemical Society
Volume143
Issue number45
DOIs
StatePublished - Nov 17 2021

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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