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Related Experiment Video

Updated: Jul 6, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Hydrogen sorption in functionalized metal-organic frameworks.

Jesse L C Rowsell¹, Andrew R Millward, Kyo Sung Park

¹Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, USA.

Journal of the American Chemical Society

|May 6, 2004

Summary

Researchers synthesized five metal-organic frameworks to study hydrogen storage. The materials show varying hydrogen uptake based on their organic linker structure, with more rings correlating to higher storage capacity.

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Published on: April 28, 2023

Area of Science:

Materials Science
Chemistry
Nanotechnology

Background:

Metal-organic frameworks (MOFs) are promising materials for gas storage due to their high surface area and tunable structures.
Efficient hydrogen storage is critical for developing clean energy technologies.
Understanding the relationship between MOF structure and hydrogen uptake is essential for designing advanced storage materials.

Purpose of the Study:

To synthesize and characterize five novel porous metal-organic frameworks.
To investigate the hydrogen adsorption properties of these MOFs at cryogenic temperatures.
To determine the influence of organic linker structure on hydrogen uptake capacity.

Main Methods:

Synthesis of five distinct MOFs using zinc oxide clusters and various aromatic dicarboxylate linkers.
Measurement of hydrogen adsorption isotherms at 77 K.
Analysis of the relationship between MOF structure and hydrogen sorption performance.

Main Results:

All synthesized MOFs demonstrated significant hydrogen uptake at 77 K.
Hydrogen uptake varied from 4.2 to 9.3 molecules of H2 per formula unit at 1 atm.
A clear correlation was observed between the number of rings in the organic linker and the hydrogen uptake capacity.

Conclusions:

The choice of organic linker significantly impacts the hydrogen storage capability of MOFs.
MOFs with larger, more complex organic linkers (more rings) exhibit enhanced hydrogen uptake.
These findings provide valuable insights for the rational design of MOFs for efficient hydrogen storage applications.