A5003502737- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Biofuel production and bioconversion
- Catalysts for Methane Reforming
- Carbon dioxide utilization in catalysis
- Mesoporous Materials and Catalysis
- biodegradable polymer synthesis and properties
- Chemical Synthesis and Reactions
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Supercapacitor Materials and Fabrication
- Enzyme Catalysis and Immobilization
- Graphene and Nanomaterials Applications
- Sulfur-Based Synthesis Techniques
- Asymmetric Hydrogenation and Catalysis
- Advancements in Battery Materials
- Microwave-Assisted Synthesis and Applications
- Nanoparticle-Based Drug Delivery
- Synthesis and biological activity
- Extraction and Separation Processes
- Chemistry and Chemical Engineering
- Microbial Metabolites in Food Biotechnology
- Zeolite Catalysis and Synthesis
- Lignin and Wood Chemistry
- Iron oxide chemistry and applications
Korea Research Institute of Chemical Technology
2013-2023
Daejeon University
2015-2018
Government of the Republic of Korea
2015-2018
Korea University of Science and Technology
2010-2015
Korea Institute of Science & Technology Information
2015
National Chemical Laboratory
2009-2011
Heterogeneous graphene oxide (GO)-based catalysts with sulfonic acid (SO3H) functional groups (GO–SO3H) were used for the selective decomposition of hexose sugars, glucose and fructose into levulinic (LA), which has been as a platform chemical various value-added derivatives. The GO–SO3H gave high yields around 78% LA showed good reuse compatibility reliable performance. transformation patterns sugar decompositions are affected by temperature, density sites, type catalyst. catalytic...
Copper/silica nanocomposite catalysts prove efficient for the direct hydrocyclization of biomass-derived levulinic acid to cyclic 2-methyltetrahydrofuran in vapor phase, at moderate hydrogen pressures. A nickel-promoted copper/silica catalyst with a high copper loading (72 wt %) is particularly effective (89 % selectivity). The are stable during long-term experiments, showing little sign leaching or sintering. Detailed facts importance specialist readers published as "Supporting...
2,5-Dimethylfuran was produced in 92% yield from fructose 1-butanol through a combination of dehydration over Amberlyst-15 and hydrogenolysis Ru–Sn/ZnO.
Poly(lactic acid) is a biodegradable polymer that has enormous potential for use as replacement some petroleum-based materials. However, the properties of this depend strongly on quality lactide monomer from which it often synthesized. In work, was synthesized alkyl lactate via prepolymer route, and reaction kinetics compared with synthesis lactic acid. A number different parameters were investigated in order to obtain highest possible yield lactide, well achieve l-isomer selectivity. Among...
Fructose is selectively transformed to poly(2,5-furandimethylene succinate) by integration of dehydration, hydrogenation, and condensation with succinic acid in 1-butanol.
Abstract Catalytic hydrogenation of organic carboxylic acids and their esters, for example, cellulosic ethanol from fermentation acetic acid ethyl acetate is a promising possibility future biorefinery concepts. A hybrid conversion process based on selective butyric combined with glucose has been developed producing biobutanol. ZnO‐supported Ru–Sn bimetallic catalysts exhibits unprecedentedly superior performance in the vapor‐phase biomass‐derived to n ‐butanol (>98 % yield) 3500 h without...
We present a continuous one-step reaction pathway for optically pure lactide under atmospheric conditions based on novel SnO<sub>2</sub>–SiO<sub>2</sub> nanocomposite catalyst.
Catalytic isomerization of glucose to fructose is a key step for the synthesis bioplastics and biofuels as well sweeteners. In this study, record yield greater than 50% with selectivity exceeding 80% was obtained from concentration 10 wt % by adopting 1-butanol/hydrotalcite catalytic system. novel process, Mg2+ leaching hydrotalcite, which an important issue when utilizing hydrotalcite in aqueous solution, negligible during reaction. NMR study confirmed that absence deuterium at C-1 position...
Stable, high-performance noble-metal catalysts have proven effective for obtaining lactate (LA) and formate (FA) from simultaneous conversion of glycerol carbonate as a CO2 source. For this purpose, we developed novel method reported herein the synthesis Ru nanoparticles (NPs) supported on graphitic nanoporous carbon (Ru/NCT, T = pyrolysis temperature). The Ru/NCT were prepared by in situ encapsulation trimeric ruthenium clusters ZIF-11 pores, with subsequent process. temperature affected...
Chemoselective hydrogenolysis of biomass-derived feedstocks into chemicals is one the most challenging transformations for upgrading biomass over noble-metal-based heterogeneous catalysts. Here, we demonstrate use an efficient Ru3Sn7 alloy-supported ZnO catalyst (Ru-Sn/ZnO) to convert furfural (FF) by selective formation 1,2-pentanediol (1,2-PDO). We found that 1,2-PDO can be produced with a very high yield (>84%) while limiting competitive 1,5-PDO (yield ∼12%) and other side hydrogenation...
Furan derivatives such as 5-hydroxymethyl furfural (HMF) and (FA) aromatic acids protocatechuic acid (PCA) represent the most essential classes of intermediates derived from lignocellulosic biomass. These bio-based compounds are potential feedstocks for producing chemicals fuels. However, these useful in their antioxidative, antibacterial, anti-aging activities. Protocatechuic (PCA, 2,3-dihydroxybenzoic acid), lignin biomass, is also one bio-derived with an active hydroxyl group, which can...
Abstract The successful synthesis of finely tuned Ni 1.5 Sn nanoalloy phases containing ZnO catalyst with a small particle size (6.7 nm) from mixed‐metal zeolitic imidazolate framework (MM‐ZIF) is investigated. was evaluated for the efficient production 1,2‐propanediol (1,2‐PDO) crude glycerol and comprehensively characterized using several analytical techniques. Among catalysts, 3Ni1Sn/ZnO (Ni/Sn=3/1) showed best catalytic performance produced highest yield (94.2 %) 1,2‐PDO at ~100 %...
We report a sulfonated hydrophobic mesoporous organic polymer (MOP-SO 3 H) as highly efficient heterogeneous catalyst for one-pot 5-ethoxymethylfurfural (EMF) production from fructose in ethanol solvent.