Phosphonates Meet Metal−Organic Frameworks: Towards CO2 Adsorption

Cleiser Thiago P. da Silva, Ashlee J. Howarth, Martino Rimoldi, Timur Islamoglu, Andrelson W. Rinaldi, Joseph T. Hupp*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Here we report a new highly microporous zirconium phosphonate material synthesized under solvothemal conditions. The specific Brunauer-Emmett-Teller (BET) surface area of the “unconventional metal−organic framework” (UMOF) is measured to be ∼900 m2/g, after following an appropriate activation protocol. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) shows that the material bears a free −OH functionality on the phosphonate linker that may interact with CO2. CO2 adsorption isotherms were collected and a measured heat of adsorption of 31 kJ/mol was obtained. In addition, adsorption isotherms of CO2, N2, and CH4 at 298 K combined with Ideal Adsorbed Solution Theory (IAST) show that the material can be expected to display high selectivities for uptake of CO2 versus N2 or CH4.

Original languageEnglish (US)
Pages (from-to)1164-1170
Number of pages7
JournalIsrael Journal of Chemistry
Issue number9
StatePublished - Oct 2018


  • carbon dioxide capture
  • metal-organic frameworks
  • porous phosphonates
  • zirconium-based MOFs

ASJC Scopus subject areas

  • Chemistry(all)

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