PANI@UiO-66 and PANI@UiO-66-NH2 Polymer-MOF Hybrid Composites as Tunable Semiconducting Materials
| Autor: | Eirin Sullivan, Jordan Shanahan, Daniel S. Kissel |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Diffuse reflectance infrared fourier transform Scanning electron microscope General Chemical Engineering Infrared spectroscopy General Chemistry Polymer Article Chemistry Crystallinity chemistry.chemical_compound chemistry Nanofiber Polyaniline Composite material QD1-999 Sheet resistance |
| Zdroj: | ACS Omega ACS Omega, Vol 5, Iss 12, Pp 6395-6404 (2020) |
| ISSN: | 2470-1343 |
| Popis: | This investigation explores optimum synthetic conditions for novel polymer-metal organic framework hybrid composites composed of Zr-terephthalate-based MOF UiO-66 and conductive polyaniline (PANI) nanofibers in an effort to optimize conductivity while minimizing MOF structural deformation. Successful syntheses of self-assembled PANI nanofibers in PANI@UiO-66 and PANI@UiO-66-NH2 composites were confirmed using scanning electron microscopy, infrared spectroscopy, and powder X-ray diffraction. The polymer-MOF composites show different bonding synergies to the PANI nanofibers depending on the organic linker used. Electronic properties of the post-synthetically modified PANI@UiO-66 and PANI@UiO-66-NH2 were investigated using UV–vis diffuse reflectance spectroscopy. Sheet resistivity of the self-assembled polymer-MOF composites was determined under an inert atmosphere at room temperature using four-point probe measurements to confirm tunable semiconductivity ranging from 40 to 2 mS/sq. Furthermore, the effects of aniline oxidation on the crystallinity and coordination of UiO-66 and UiO-66-NH2 were determined through analysis of these results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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