Office of Technology Transfer – University of Michigan

Microporous Coordination Copolymer Built from Benzene-1,4-Dicarboxylate and Naphthalene-2,6-Dicarboxylate

Technology #5043

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Adam J. Matzger
Managed By
Jeremy Nelson
Patent Protection
US Patent Pending

Production cost often prohibitive in porous BET surface polymers

Porous coordination polymers have been in existence since the late 1990s. They are commonly used in commercial applications such as heterogenous catalysis, separation processes, and gas storage. They can be custom-made to order with various types of inorganic and organic linkers and ligands. However, few materials to-date have a porous Brunauer-Emmer-Teller (BET) surface area over 4000 m2/g and still maintain a reasonable cost of production. A larger surface area is often necessary in industrial processes to allow large quantities of materials to undergo a reaction or separation in an efficient manner.

Improved method to create highly porous and BET surgace area in cost-effective margin

Researchers at the University of Michigan have discovered a method to create a highly porous crystalline material with a high BET surface area (4030 m2/g) using readily available organic ligands. This material has a non-interpenetrated structure, high structural ability, high surface area and high pore volume. X-ray diffraction shows that the material has cubic and tetragonal microporous cages. The network structure can be further controlled by changing the ratios of the organic linkers. This material has been tested and shows a maximum nitrogen absorption of over 950 cm3/g at 77K. It is a promising media for gas storage and can be easily modified for other industrial applications as well.

Applications and Advantages


  • Heterogenous catalysts
  • Gas storage
  • Material exchange resins for separation


  • Very high efficiency
  • Material can be much smaller due to high surface area