DMOF-1 as a Representative MOF for SO2 Adsorption in Both Humid and Dry Conditions

Julian Hungerford, Souryadeep Bhattacharyya, Uma Tumuluri, Sankar Nair, Zili Wu, Krista S. Walton

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

The mixed-ligand metal-organic framework (MOF) DMOF-1 has been successfully synthesized via ligand: 2,3,5,6-tetramethylterephthalic acid (TM), 9,10-anthracenedicarboxylic acid (ADC), 1,4-naphthalenedicarboxylic acid (NDC), 2,5-dimethyl terephthalic acid (DM), and metal (Zn, Cu, Ni, Co) substitutions to develop structure-property relationships for adsorption of water and SO2, an acid gas commonly found in flue gas streams at ppm-level concentrations. The substitution of bulky ligands, TM and ADC, resulted in not only improved water stability but also stability toward dry SO2, whereas substitution with NDC and DM did not provide water or SO2 stability. ADC-functionalized Zn-DMOF exhibited the greatest stability under humid SO2 exposure of the ligand-functionalized materials that were tested. Metal substitution of Cu into the DMOF-TM structure resulted in the greatest stability of the M-DMOF-TM samples upon exposure to humid SO2, and Ni-DMOF-TM provided the second most stable material. These results follow the prediction of the Irving-Williams series of metal node/ligand bond strengths.

Original languageEnglish
Pages (from-to)23493-23500
Number of pages8
JournalJournal of Physical Chemistry C
Volume122
Issue number41
DOIs
StatePublished - Oct 18 2018

Fingerprint

Dive into the research topics of 'DMOF-1 as a Representative MOF for SO2 Adsorption in Both Humid and Dry Conditions'. Together they form a unique fingerprint.

Cite this