A5086204650- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Ammonia Synthesis and Nitrogen Reduction
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Nanomaterials for catalytic reactions
- Advanced Battery Materials and Technologies
- Catalysis for Biomass Conversion
- Advancements in Battery Materials
- Carbon dioxide utilization in catalysis
- Advanced Battery Technologies Research
- Nanocluster Synthesis and Applications
- Biofuel production and bioconversion
- Hydrogen Storage and Materials
- Supercapacitor Materials and Fabrication
- Quantum Dots Synthesis And Properties
- CO2 Reduction Techniques and Catalysts
- Chalcogenide Semiconductor Thin Films
Sungshin Women's University
2025
Korea Institute of Energy Research
2020-2023
Korea University
2020-2022
Dongguk University
2013-2014
Ammonia is a promising COx-free hydrogen (H2) carrier because of its high volumetric H2 density. However, developing highly active/stable ammonia decomposition catalysts for production remains challenging. In this study, the role ceria (CeO2) as promoter Ru-based was investigated. Ru/Cex/MgAl(y00) were prepared by incipient wetness impregnation (IWP) and deposition–precipitation (DP) methods. The surface oxygen vacancy (OV) concentration controlled Ce loading calcination temperature. By...
We report the development of Ru/Mg–Al oxide coated metal-structured catalysts with excellent heat and mass transfer characteristics for efficient clean H2 production from ammonia decomposition. Ammonia is a promising carrier transport hydrogen facilitates COx-free by decomposing into nitrogen hydrogen. Ru nanoparticles are uniformly dispersed on Mg–Al layer FeCralloy monoliths foams via precipitation. The catalytic activities depend surface area loading metal dispersion in layer. At...
The dependence of the catalytic activity and coke resistance Ni-based catalysts on support type was investigated in dry reforming methane (DRM). Catalysts were prepared using incipient wetness impregnation analyzed ICP-OES, BET-BJH, XRD, H2-chemisorption, H2-TPR, CO2-TPD. DRM performed at 600–750 °C 144,000 mL/gcat∙h GHSV (CH4/CO2/N2 = 1/1/1). Ni/Al2O3 Ni/MgO formed NiAl2O4 NiO-MgO solid solutions, respectively, owing to strong binding between metal support. In contrast, MgO-Al2O3 MgAl2O4...
To produce high-purity 1-octene, the dehydration of 1-octanol was performed over a dual-bed catalytic system comprising Al2O3 and Ba/Al2O3 catalysts. The influence catalyst weight on activities single-bed systems initially investigated at liquid hourly space velocities (LHSVs) 7–168 h−1 400 °C. For system, 1-octene selectivity decreased with an increase in weight. Although increased owing to anti-Saytzeff effect, its yield limited due low conversion. efficiency subsequently by varying bed...
Dry reforming of methane (DRM) has attracted attention as an eco-friendly technology that generates synthetic gas from two main greenhouse gases, CH <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> and CO xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> . However, the catalysts applied for DRM are easily deactivated due to carbon deposition sintering at high temperature. In this study, prevent deterioration catalyst performance...
A small loading of highly dispersed Ru on Ni/MgAl2O4 catalyst was investigated in the dry reforming methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; DRM reaction performed at CH4/CO2/N2 = 1/1/1 600‒750°C. bimetallic Ni‒Ru exhibited improved reducibility metal dispersion compared with that Ni catalyst. Among catalysts, Ru(D)/Ni(I)/MgAl2O4 had highest (7.23%) largest amount CO2 desorption (135 μmol/g). Thus, this CH4 conversion (85.6%)...