A5067799791- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Petroleum Processing and Analysis
- Nanomaterials for catalytic reactions
- Catalysis for Biomass Conversion
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Enhanced Oil Recovery Techniques
- Advanced battery technologies research
- Zeolite Catalysis and Synthesis
- Electrochemical Analysis and Applications
- Hydrocarbon exploration and reservoir analysis
- Fuel Cells and Related Materials
- Polymer crystallization and properties
- Corrosion Behavior and Inhibition
- Subcritical and Supercritical Water Processes
- Thermochemical Biomass Conversion Processes
- Advancements in Battery Materials
- Metal Extraction and Bioleaching
- Environmental remediation with nanomaterials
- biodegradable polymer synthesis and properties
- Carbon dioxide utilization in catalysis
- Machine Learning in Materials Science
- Biodiesel Production and Applications
Dankook University
2015-2024
Virginia Tech
2003-2024
Yong In University
2017-2021
Government of the Republic of Korea
2021
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2017
Seoul National University
1998-2008
Korea Institute of Science and Technology
2008
National Institute of Advanced Industrial Science and Technology
2007
National Pingtung University of Science and Technology
2004
Pennsylvania State University
1999
Silica-supported manganese oxide catalysts with loadings of 3, 10, 15, and 20 wt % (as MnO2) were characterized use X-ray absorption spectroscopy diffraction (XRD). The edge positions in the spectra indicated that oxidation state for decreased increasing metal loading from a value close to Mn2O3 (+3) Mn3O4 (+2(2)/3). XRD was consistent these results as diffractograms supported higher matched those reference. reactivity silica-supported acetone ozone an oxidant studied over temperature range...
Effects of nitrogen compounds, aromatics, and aprotic solvents on the oxidative desulfurization (ODS) refractory sulfur compounds light cycle oil over Ti-SBA-15 catalyst were studied in a batch or continuous fixed-bed reactor with tert-butyl hydroperoxide (TBHP) as oxidant. The fresh spent catalysts characterized by BET, TGA, ICP-AES, X-ray absorption spectroscopy. found to inhibit ODS order: indole > quinoline carbazole. addition aromatics solvent feed gradually recovered activity for LCO....
Supported manganese oxide catalysts were prepared by the impregnation of alumina foam blocks washcoated with and silica. The content based on weight washcoats was 10 wt % calculated as MnO2. Fourier transform profiles Mn K-edge EXAFS spectra for these samples gave three distinctive peaks at 0.15, 0.25, 0.32 nm close to Mn3O4 β-MnO2. number surface active sites determined through oxygen chemisorption measurements a reduction temperature (Tred = 443 K) obtained from temperature-programmed...
The kinetics for the initial stage of hydrodesulfurization (HDS) 4,6-dimethyldibenzothiophene (4,6-DMDBT) and dibenzothiophene (DBT) were comparatively examined over NiMo CoMo sulfide catalysts newly developed nickel phosphide catalysts. HDS can proceed through an indirect hydrogenation (HYD) pathway a direct desulfurization (DDS, or hydrogenolysis) pathway. rate constants HYD DDS pathways (k1 k2, respectively) estimated using method that involved extrapolation to zero conversion selectivity...