Hydrogen storage measurement, synthesis and characterization of metal-organic frameworks via bridged spillover

Cheng-Yu Wang, Cheng Si Tsao*, Ming Sheng Yu, Pin Yen Liao, Tsui Yun Chung, Hsiu Chu Wu, Michael A. Miller, Yi Ren Tzeng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

The present study established a time-saving technique for hydrogen uptake measurements using a high-pressure thermo-gravimetric analyzer (HPTGA). The critical buoyancy effects were considered in the analysis model. The HPTGA technique developed here for metal-organic frameworks (MOFs) was validated through independent experiments. The room temperature (RT) hydrogen uptake of MOFs via spillover was significantly enhanced by use of a bridge-building treatment. MOF samples with different structural parameters and RT hydrogen uptake performance can be prepared and manipulated through various factors affecting their synthesis. The structural evolution of MOFs within various steps during the synthesis and bridge-building processes were investigated by electron microscopy, nitrogen sorption isotherm analysis, and powder X-ray diffraction.

Original languageEnglish
Pages (from-to)88-94
Number of pages7
JournalJournal of Alloys and Compounds
Volume492
Issue number1-2
DOIs
StatePublished - 4 Mar 2010

Keywords

  • Characterization
  • Hydrogen absorbing materials
  • Metal-organic framework
  • Nanostructured materials

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