A5043936189- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis for Biomass Conversion
- Zeolite Catalysis and Synthesis
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Mesoporous Materials and Catalysis
- Electrocatalysts for Energy Conversion
- Carbon Dioxide Capture Technologies
- Advancements in Battery Materials
- Innovative Microfluidic and Catalytic Techniques Innovation
- Ammonia Synthesis and Nitrogen Reduction
- Nanomaterials for catalytic reactions
- biodegradable polymer synthesis and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Process Optimization and Integration
- Plasma Applications and Diagnostics
- Microbial metabolism and enzyme function
- Advanced Polymer Synthesis and Characterization
- Supercapacitor Materials and Fabrication
- Microbial Metabolic Engineering and Bioproduction
- Biofuel production and bioconversion
- Membrane Separation and Gas Transport
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
Sogang University
2015-2024
University of California, San Diego
1990-2018
Government of the Republic of Korea
2015-2016
Korea Research Institute of Chemical Technology
2010-2014
Sungkyunkwan University
2011
Seoul National University
2001-2003
Hybrid supercapacitors (battery-supercapacitor hybrid devices, HSCs) deliver high energy within seconds (excellent rate capability) with stable cyclability. One of the key limitations in developing high-performance HSCs is imbalance power capability between sluggish Faradaic lithium-intercalation anode and rapid non-Faradaic capacitive cathode. To solve this problem, we synthesize Nb2O5@carbon core-shell nanocyrstals (Nb2O5@C NCs) as high-power materials controlled crystalline phases...
Perfect one-dimensional orientation of zeolite microcrystals on glass can be obtained with very high surface coverage (see Figure), as demonstrated here. The approach, which involves covalently linking the to glass, is highly efficient and extended assembly crystals other supports, such silica, alumina, zeolites.
Two process models for carbon dioxide utilized gas-to-liquids (GTL) (CUGP) mainly producing light olefins and Fischer–Tropsch (F–T) synthetic oils were developed by Aspen Plus software. Both are composed of a reforming unit, an F–T synthesis unit recycle while the main difference is feeding point fresh CO2. In CO2 steam methane combined together to produce syngas in flexible composition. Meanwhile, hydrogenation conducted via reverse water gas shift on Fe-based catalysts hydrocarbons. After...
The organization of micrometer-sized zeolite (ZSM-5) crystals into micropatterned, uniformly oriented monolayers on glass (see SEM image) is reported. simple yet highly versatile process, which has many advantages over conventional molding and heating methods, based the formation covalent links by microcontact printing.
A process model for a gas-to-liquids (GTL) mainly producing Fischer−Tropsch (FT) synthetic oils has been developed to assess the effects of reforming methods, recycle ratio unreacted syngas mixture on efficiency and greenhouse gas (GHG) emission. The unit our study is composed both steam methane (SRM) carbon dioxide (CDR) form syngas, which gives composition flexibility, reduction in GHG emission, higher cost-competitiveness. With recycling, it found that zero emission CO2 from can be...
A hexagonally ordered mesoporous carbon, CMK-3, was utilized as a support for Fischer–Tropsch catalyst. Each array of elongated pore structures with Co nanoparticles can be regarded nanochannel reactor. Due to the confinement and hydrophobic nature support, this catalyst demonstrated excellent catalytic performance.
In Fischer–Tropsch synthesis (FTS), cobalt carbide (Co<sub>2</sub>C) is not a catalytically active material, but rather an undesired phase associated with low catalytic performance.
Abstract Our zirconium phosphate (ZrP)‐promoted Ru/Co/ZrP/SiO 2 catalyst reveals a high catalytic activity and stability during Fischer–Tropsch synthesis. Surface modification with ZrP on SiO support an appropriate amount of phosphorous component prevents cobalt particle aggregation enhances its stability. These positive effects are mainly induced by the spatial confinement particles in thermally stable matrix, performance was greatly improved when P/(Zr+P) molar ratio 0.134 CoZrP(0.5) catalyst.