Metal–organic frameworks (MOFs) are found to be promising sorbents for adsorption cooling applications. Using organic ligands with 1, 2, and 3 phenylene rings, we construct moisture-stable Ni-MOF-74 members with adjustable pore apertures. These pore-engineered materials exhibit excellent sorption capabilities towards water and fluorocarbons. The adsorption patterns for these materials differ significantly and are attributed to variances in the hydrophobic/hydrophilic pore character, associated with differences in pore size. Complementary ex situ characterizations and in situ FTIR spectra are deployed to understand the correlations between the mechanisms of gas loadings and the pore environment of the MOFs.
Revised: April 23, 2020 |
Published: July 13, 2017
Citation
Zheng J., V.S. Vemuri, L. Estevez, P.K. Koech, T. Varga, D.M. Camaioni, and T.A. Blake, et al. 2017.Pore-Engineered Metal–Organic Frameworks with Excellent Adsorption of Water and Fluorocarbon Refrigerant for Cooling Applications.Journal of the American Chemical Society 139, no. 31:10601-10604.PNNL-SA-124980.doi:10.1021/jacs.7b04872