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Title: | Ultra-Microporous Zinc-Diaminotriazolate-Oxalate Metal Organic Framework with Nonlayered-Pillared Structure Showing High Carbon Dioxide Uptakes at Low Partial Pressures |
Authors: | SINGH, PIYUSH SINGH, HIMAN DEV SHEKHAR, PRAGALBH JAIN, CHITVAN Song, Ping Loloei, Mahsa Edwin, Michael Gao, Yan Masoumifard, Nima VAIDHYANATHAN, RAMANATHAN Dept. of Chemistry |
Keywords: | Adsorption Chemical structure Diffraction Isotherms Metal organic frameworks 2025-MAR-WEEK4 TOC-MAR-2025 2025 |
Issue Date: | Mar-2025 |
Publisher: | American Chemical Society |
Citation: | Chemistry of Materials |
Abstract: | We report a zinc-diaminotriazolato-oxalate metal–organic framework (IISERP-MOF36, 1) inspired by the exceptional CO2 selectivity demonstrated by its triazolate analogue, CALF-20. Unlike the CALF-20 family, 1 adopts a nonlayered, pillared structure, despite their similar composition. The 1D ultramicroporous channels in this MOF enhance strong interactions with the carbon dioxide CO2. Additionally, the t-shaped orientation of CO2 molecules within the pores promotes cooperative CO2–CO2 interactions, resulting in superior low-pressure CO2 uptake compared to that of CALF-20. This suggests that 1 has potential as a sorbent in applications such as the natural gas combined cycle or direct air capture. However, despite its structural and compositional similarities to CALF-20, 1 exhibits reduced hydrophobicity due to subtle differences in the pore environment. These findings open possibilities for designing advanced sorbents combining the best characteristics of both of these MOFs. |
URI: | https://doi.org/10.1021/acs.chemmater.4c03231 http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9427 |
ISSN: | 0897-4756 1520-5002 |
Appears in Collections: | JOURNAL ARTICLES |
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