Keywords and Phrases
Continuous-flow processes; Flow Chemistry; Heterogeneous catalyst; Hollow fiber membrane reactor
“Over the past decade, laboratory-scale continuous-flow processes have witnessed explosive developments and have attracted a great deal of interest with respect to the significance of the economic and environmentally-sustainable production of pharmaceuticals, fine chemicals, and agrochemicals, as well as upgrading of biomass feedstocks. Immobilization of organocatalysts and metal nanoparticles on continuous-flow microreactors offers an efficient catalytic system that exploits and enhances the advantages of both nanocatalysis and flow chemistry, the so-called flow nanocatalysis approach. Various approaches have been developed for the development of continuous-flow reactions including immobilization and subsequent anchoring of organocatalysts and metal nanoparticles within microfluidic reactors. However, many applications of microfluidic reactor-supported catalysts are still hampered by catalysts decomposition and their subsequent leaching from the microfluidic reactor to the product stream. This dissertation focuses on the investigation of structure/property/performance relations of a new catalytic membrane reactor platform for conducting catalytic reactions in a continuous-flow fashion. More specifically, it focuses on permanent immobilization/impregnation of organic or metal nanoparticle catalysts by covalent bonding within highly swelling-resistant asymmetric polymeric hollow fiber surfaces for non-leaching catalysis. This novel hollow fiber membrane reactor was used as a heterogeneous catalyst and continuous-flow reactor for various reactions including aldol and nitroaldol condensation, Heck coupling, tandem reaction of glucose and fructose to 5-hydroxymethylfurfural, and nitrophenol reduction reactions”--Abstract, page iv.
Rownaghi, Ali A.
Smith, Joseph D.
Chemical and Biochemical Engineering
Ph. D. in Chemical Engineering
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Direct Aldol and Nitroaldol Condensation in an Aminosilane-Grafted Si/Zr/Ti Composite Hollow Fiber as a Heterogeneous Catalyst and Continuous Flow Reactor”
- Engineering Porous Polymer Hollow Fiber Microfluidic Reactors for Sustainable C-H Functionalization
- Aminosilane-grafted SiO2-ZrO2 Polymer Hollow Fibers as Bifunctional Microfluidic Reactor for Tandem Reaction of Glucose and Fructose to 5-Hydroxymethylfurfural
- A Pd-immobilized aminosilane-grafted SiO2/SiO2-TiO2 composite hollow fiber as a heterogeneous catalyst and continuous flow reaction in the degradation of 4-nitrophenol
xvi, 169 pages
© 2018 Yingxin He, All rights reserved.
Dissertation - Open Access
Electronic OCLC #
He, Yingxin, "Engineering polymeric hollow fiber membrane reactors for sustainable chemical transformation reactions" (2018). Doctoral Dissertations. 3097.