Akademik Veri Yönetim Sistemi
ASME 2023 International Mechanical Engineering Congress and Exposition, IMECE 2023, Louisiana, Amerika Birleşik Devletleri, 29 Ekim - 02 Kasım 2023, cilt.4
Nanoparticles with metal-organic framework (MOF) structures are emerging advanced materials with exceptional internal structural and external surface properties. Particles with MOF crystalline structure can be synthesized with the conventional solvothermal methods using a metal salt and an organic ligand dissolved in a solvent in proper ratios to prepare a precursor solution. Precise control of the concentration of the precursor solution and the thermodynamic conditions, such as the temperature, pressure, and volume of the reactor, is critical in obtaining the desired MOF structure, but difficult for systems in bulk amounts. Droplet-generating microfluidic devices offer a controlled environment and inherent compartmentalization. Heat and mass transfer is dramatically enhanced at the microscale. In this study, we comparatively investigated the synthesis of zirconium(IV)-based UiO-66 nanoparticles using both a macro-scale batch reactor and a droplet-based microfluidic system. The resulting products from both the macro and micro scale systems were analyzed using XRD and SEM. We determined the recipes and the residence times that yielded UiO-66 nanoparticles with a size less than 100 nm at 100 °C. We found that more concentrated precursor solution recipes reduce the time required for nucleation and crystal growth, which is favorable in the microfluidic system.