A5012814042- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Mesoporous Materials and Catalysis
- Thermochemical Biomass Conversion Processes
- Biodiesel Production and Applications
- Catalysis for Biomass Conversion
- Catalysis and Oxidation Reactions
- Zeolite Catalysis and Synthesis
- Lignin and Wood Chemistry
- Carbon Nanotubes in Composites
- Chemical Looping and Thermochemical Processes
- Subcritical and Supercritical Water Processes
- Carbon Dioxide Capture Technologies
- Nanomaterials for catalytic reactions
- Silicon Nanostructures and Photoluminescence
- Polyoxometalates: Synthesis and Applications
- Advancements in Battery Materials
- Algal biology and biofuel production
- Quantum Dots Synthesis And Properties
- Metal-Organic Frameworks: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Microbial Fuel Cells and Bioremediation
- Supercapacitor Materials and Fabrication
- Nanowire Synthesis and Applications
Chonnam National University
2015-2024
Chonnam National University Hospital
2018-2022
Government of the Republic of Korea
2018
Korea Institute of Energy Research
2005-2012
Yuan Ze University
2004-2007
Korea Advanced Institute of Science and Technology
1996-2001
UNSW Sydney
1997
SBA-15 ordered mesoporous silicas were synthesized using the method reported by Zhao et al. The structures of these materials characterized powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), and nitrogen adsorption. samples found to exhibit structural properties similar those earlier. Our study confirmed that size primary mesopores can be tailored choice synthesis temperature exhibits a significant amount disordered micropores small mesopores. volume complementary pores...
Microporosity and connectivity of ordered mesopores SBA-15 silica were studied using nitrogen adsorption novel methods based on selective pore blocking via organosilane modification, the imaging inverse platinum replica mesoporous structure. It was found that exhibits a relation between size, volume specific surface area which is significantly different from for cylindrical or hexagonal pores, suggests structure more complex than an array hexagonally channels, even if they are corrugated....
Abstract The hydrodeoxygenation of a model compound lignin-derived bio-oil, guaiacol, which can be obtained from the pyrolysis biomass to has attracted considerable research attention because its huge potential as substitute for conventional fuels. In this study, platinum-loaded HY zeolites (Pt/HY) with different Si/Al molar ratios were used catalysts anisole, veratrole, and phenol range hydrocarbons, such cyclohexane. cyclohexane (major product) yield increased increasing number acid sites....
Highly ordered MCM-41 materials were synthesized using single or mixed alkyltrimethylammonium and alkyltriethylammonium surfactants of alkyl chain lengths from 12 to 22. As determined combined adsorption/powder X-ray diffraction (XRD) analysis, the obtained samples exhibited pore sizes 3.2 4.8 nm with about 0.3 increments. Nitrogen adsorption isotherms for under study remarkably sharp capillary condensation steps. The isotherm highly featured a narrow hysteresis loop parallel desorption...
Preferential growth along the 〈110〉 axes occurs in preparation of Pt nanowires by reduction [Pt(NH3)4]+ ions mesopores silica MCM-41. The nanowires, uniformly 3.0 nm diameter and with lengths tens to hundreds nanometers, consist single crystals are stable up 500°C. Unsupported released dissolving matrix aqueous HF, 300°C.
Nickel-based catalysts have been good candidates for steam reforming of methane, but their stability has restricted due to the agglomeration among particles at high temperature. In present work, a new type Ni@SiO2 yolk-shell nanoreactor framework comprising Ni cores inside hollow silica shells prepared through direct coating and subsequent selective etching metal cores. This is remarkably stable temperatures up 973 K, because around nickel essentially block particle sintering. The structure...
Carbon-based adsorbents with controlled porosity were prepared to investigate the adsorption capacity of refractory sulfur compounds. The carbon-based was by thermal treatment at 1173 K in CO2 environment. equilibrium capacities each adsorbent measured for both model and commercial diesel. Pore widening activation increased BET surface area, total pore volume, micropore capacity. However, did not increase linearly according BJH which included properties meso- macropores. Specific whose...
FeReO<sub>x</sub>/ZrO<sub>2</sub>, with mesoporosity, oxophilicity and well-balanced acidity, reveals high catalytic activity low phenolic trapping potential in mild HDO of phenolics.