AI Article Synopsis
- The study presents an easy method to create a composite of UiO-66-NH metal-organic framework and oxidized single-walled carbon nanotubes at room temperature, using acetic acid to influence the MOF's shape.
- It investigates the interaction between the components through DFT calculations, revealing a specific growth pattern of the MOF on the carbon nanotubes.
- The resulting composite exhibits both the microporosity of the MOF and the electrical conductivity of the carbon nanotubes, showing improved gas sensing abilities for detecting dimethyl methylphosphonate vapor compared to just using the carbon nanotubes alone.
Article Abstract
In this work, we demonstrate a facile synthesis of UiO-66-NH metal-organic framework (MOF)/oxidized single-walled carbon nanotubes (ox-SWCNTs) composite at room temperature. Acetic acid (HAc) was used as a modulator to manipulate the morphology of the MOF in these composites. With a zirconium oxide cluster (Zr) to 2-aminoteraphthalate linker (ATA) 1:1.42 ratio and acetic acid modulator, we achieved predominately heterogeneous MOF growth on the sidewalls of CNTs. Understanding the growth mechanism of these composites was facilitated by conducting DFT calculations to investigate the interactions between ox-SWCNTs and the MOF precursors. The synthesized composites combine both microporosity of the MOF and electrical conductivity of the SWCNTs. Gas sensing tests demonstrated higher response for UiO-66-NH/ox-SWCNT hybrid toward dry air saturated with dimethyl methylphosphonate (DMMP) vapor compared to oxidized single-walled carbon nanotubes (ox-SWCNTs) alone.
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| http://dx.doi.org/10.1021/acsami.0c21509 | DOI Listing |
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