(513el) Intensified Flow Reactor for Continuous Synthesis of High Surface Area Titania Microparticles
- Conference: AIChE Annual Meeting
- Year: 2020
- Proceeding: 2020 Virtual AIChE Annual Meeting
- Group: Catalysis and Reaction Engineering Division
- Time: Friday, November 20, 2020 - 8:00am-9:00am
Here we introduce an intensified flow reactor for continuous manufacturing of monodisperse titania microspheres across a wide variety of morphologies that possess excellent surface areas post-calcination, surpassing 360 m2/g.2,3 The titania microparticles are synthesized utilizing a capillary-based flow-focusing microreactor constructed using easily accessible commercially available components. The microreactor combines in-line UV crosslinking of a photocurable polymer scaffold and the use of a polar aprotic solvent as the continuous phase to enable control of microparticle morphology, crystallinity, and size while using air- and moisture-sensitive titanium precursors. By varying precursor compositions, it is possible to achieve different microparticle morphologies ranging from hollow shells to dense spheres while maintaining anatase crystalline phase at calcination temperatures up to 900 C.
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2 Z. S. Campbell et al. Chem. Mater., 2018, 30, 8948â8958.
3 Z. S. Campbell et al. RSC Adv., 2020, 10, 8340â8347.