Synthesis of zeolitic imidazolate framework-8 using an electric field in a gelled medium
Using the ion migration in various gel mediums governed by a direct electric field is a well-known technique, especially in analytical chemistry, to separate charged chemical species. This approach is also suitable for generating different-sized crystals and controlling the pattern formation in gels...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2024
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| Sorozat: | MATERIALS ADVANCES
5 No. 3 |
| Tárgyszavak: | |
| doi: | 10.1039/D3MA00690E |
| mtmt: | 34516454 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/29509 |
| Tartalmi kivonat: | Using the ion migration in various gel mediums governed by a direct electric field is a well-known technique, especially in analytical chemistry, to separate charged chemical species. This approach is also suitable for generating different-sized crystals and controlling the pattern formation in gels. Here we present a synthesis of zeolitic imidazolate framework-8 in an agarose gel driven by a direct electric field. We investigate the effect of an applied electric current on the macroscopic pattern formed in the gel, morphology, size, and dispersity of the ZIF-8 crystals. Upon increasing the electric current, the average size of the particles and dispersity of the samples decreased along the gel tube from the liquid-gel interface of the anodic side. This trend is opposite to the results obtained in synthesising particles utilizing only diffusion for mass transport. The electric field caused peak-doubling in the X-ray diffraction (XRD) pattern. To support the experimental observations, we developed a reaction-diffusion-migration model, which qualitatively describes the pattern formation observed in experiments. © 2024 RSC. |
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| Terjedelem/Fizikai jellemzők: | 1199-1204 |
| ISSN: | 2633-5409 |