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Open AccessArticle

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

1
Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
2
Department of Chemical Engineering, Kangwon National University, Samcheok 25913, Korea
*
Authors to whom correspondence should be addressed.
These authors were equally contributed this paper.
Catalysts 2019, 9(1), 25; https://doi.org/10.3390/catal9010025
Received: 8 December 2018 / Revised: 22 December 2018 / Accepted: 24 December 2018 / Published: 30 December 2018
(This article belongs to the Special Issue Catalytic Fast Pyrolysis)
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. View Full-Text
Keywords: heterogeneous catalyst; hydrodynamic process; selective alcohol oxidation; biomass-derived HMF; graphene; ruthenium oxide heterogeneous catalyst; hydrodynamic process; selective alcohol oxidation; biomass-derived HMF; graphene; ruthenium oxide
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MDPI and ACS Style

Jeong, J.-M.; Jin, S.B.; Yoon, J.H.; Yeo, J.G.; Lee, G.Y.; Irshad, M.; Lee, S.; Seo, D.; Kwak, B.E.; Choi, B.G.; Kim, D.H.; Kim, J.W. High-Throughput Production of Heterogeneous RuO2/Graphene Catalyst in a Hydrodynamic Reactor for Selective Alcohol Oxidation. Catalysts 2019, 9, 25.

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