High-Throughput Production of Heterogeneous RuO2/Graphene Catalyst in a Hydrodynamic Reactor for Selective Alcohol Oxidation

We report on the high-throughput production of heterogeneous catalysts of RuO2-deposited graphene using a hydrodynamic process for selective alcohol oxidation. The fluid mechanics of a hydrodynamic process based on a Taylor–Couette flow provide a high shear stress field and fast mixing process. The...

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Bibliographic Details
Published in:Catalysts 2019-01, Vol.9 (1), p.25
Main Authors: Jeong, Jae-Min, Jin, Se Bin, Yoon, Jo Hee, Yeo, Jae Goo, Lee, Geun Young, Irshad, Mobina, Lee, Seongwoo, Seo, Donghyuk, Kwak, Byeong Eun, Choi, Bong Gill, Kim, Do Hyun, Kim, Jung Won
Format: Article
Language:English
Subjects:
Alcohol
Binding sites
By products
Carbon
Catalysts
Chemical reactions
Chemical synthesis
Couette flow
Fluid flow
Fluid mechanics
Graphene
Graphite
Hydroxymethylfurfural
Ionic liquids
Nanoparticles
Oxidation
Reagents
Ruthenium oxide
Shear stress
Sheets
Stress distribution
Substrates
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Summary:We report on the high-throughput production of heterogeneous catalysts of RuO2-deposited graphene using a hydrodynamic process for selective alcohol oxidation. The fluid mechanics of a hydrodynamic process based on a Taylor–Couette flow provide a high shear stress field and fast mixing process. The unique fluidic behavior efficiently exfoliates graphite into defect-free graphene sheets dispersed in water solution, in which ionic liquid is used as the stabilizing reagent to prevent the restacking of the graphene sheets. The deposition of RuO2 on a graphene surface is performed using a hydrodynamic process, resulting in the uniform coating of RuO2 nanoparticles. The as synthesized RuO2/IL–graphene catalyst has been applied efficiently for the oxidation of a wide variety of alcohol substrates, including biomass-derived 5-hydroxymethylfurfural (HMF) under environmentally benign conditions. The catalyst is mechanically stable and recyclable, confirming its heterogeneous nature.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal9010025