Search Results - "CHO, Byong K"

Hydrothermal stability of CuSSZ13 for reducing NOx by NH3 by Kim, Young Jin, Lee, Jun Kyu, Min, Kyung Myung, Hong, Suk Bong, Nam, In-Sik, Cho, Byong K.

“…[Display omitted] •Deactivation of CuSSZ13 by aging becomes more severe as the Cu/Al ratio increases.•Cu2+ ions are first exchanged on the sites on D6R (α)…”
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Mn–Fe/ZSM5 as a low-temperature SCR catalyst to remove NOx from diesel engine exhaust by Kim, Young Jin, Kwon, Hyuk Jae, Heo, Iljeong, Nam, In-Sik, Cho, Byong K., Choung, Jin Woo, Cha, Moon-Soon, Yeo, Gwon Koo

“…[Display omitted] ▸ Mn–Fe/ZSM5 exhibits excellent low-temperature deNOx activity and N2 selectivity. ▸ Its hydrothermal stability is enhanced by addition of Mn…”
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Oxidation of formaldehyde over Pd/Beta catalyst by Park, Sang Jun, Bae, Inkwon, Nam, In-Sik, Cho, Byong K., Jung, Seong Moon, Lee, Ju-Hyung

“…[Display omitted] ► 0.25Pd/Beta catalyst exhibits the highest HCHO removal activity among monometallic catalysts examined. ► HCHO is completely oxidized to CO2…”
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Ostwald-ripening sintering kinetics of Pd-based three-way catalyst: Importance of initial particle size of Pd by Kang, Sung Bong, Lim, Jong Bin, Jo, Donghui, Nam, In-Sik, Cho, Byong K., Hong, Suk Bong, Kim, Chang Hwan, Oh, Se H.

“…•Commercial and model Pd TWCs with larger initial Pd particles sinter more slowly.•The optimum initial particle size with sintering resistance is around…”
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Thermal stability of Pd-containing LaAlO3 perovskite as a modern TWC by Yoon, Dal Young, Kim, Young Jin, Lim, Ji Hyun, Cho, Byong K., Hong, Suk Bong, Nam, In-Sik, Choung, Jin Woo

“…[Display omitted] •LaAlPdO3 exhibits a superior thermal stability of Pd due to its Pd–La interaction.•Pd–La interaction improves the TWC activity of Pd while…”
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Activity and thermal stability of Rh-based catalytic system for an advanced modern TWC by Heo, Iljeong, Yoon, Dal Young, Cho, Byong K., Nam, In-Sik, Choung, Jin Woo, Yoo, Seungbeom

“…[Display omitted] ► ZrO2 is a promising support for preparing a thermally stable Rh TWC. ► The sintering and burial of Rh are primary causes for the catalyst…”
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Detailed reaction kinetics for double-layered Pd/Rh bimetallic TWC monolith catalyst by Kang, Sung Bong, Han, Seok Jun, Nam, In-Sik, Cho, Byong K., Kim, Chang Hwan, Oh, Se H.

“…[Display omitted] •Reaction kinetics of Pd/Rh TWC was developed by combining kinetics of each catalyst.•Combined kinetics well predicted TWC performances,…”
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Effect of H2 on deNOx performance of HC-SCR over Ag/Al2O3: Morphological, chemical, and kinetic changes by Kim, Pyung Soon, Kim, Mun Kyu, Cho, Byong K., Nam, In-Sik, Oh, Se H.

“…Enhanced deNOx activity of HC-SCR by H2 over Ag/Al2O3 involves morphological, chemical, and kinetic changes. Morphological change is slow but kinetic change on…”
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DeNOx performance of Ag/Al2O3 catalyst using simulated diesel fuel–ethanol mixture as reductant by Kim, Mun Kyu, Kim, Pyung Soon, Baik, Joon Hyun, Nam, In-Sik, Cho, Byong K., Oh, Se H.

“…[Display omitted] ► When C1/NOx and E/SD ratios were 4, the highest NOx-to-N2 conversion, 70% over Ag(3.8)/Al2O3 was achieved at 300°C. ► A proper combination…”
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Universal activity function for predicting performance of Pd-based TWC as function of Pd loading and catalyst mileage by Kang, Sung Bong, Nam, In-Sik, Cho, Byong K., Kim, Chang Hwan, Oh, Se H.

“…[Display omitted] •A 3D activity function based upon Pd MSA was developed with Pd loading and mileage.•Primary kinetics combined with activity function well…”
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Hydrothermal stability of CuZSM5 catalyst in reducing NO by NH3 for the urea selective catalytic reduction process by PARK, Joo-Hyoung, HYE JUN PARK, JOON HYUN BAIK, NAM, In-Sik, SHIN, Chae-Ho, LEE, Jong-Hwan, CHO, Byong K, OH, Se H

“…To confirm the hydrothermal stability of CuZSM5 for urea selective catalytic reduction (SCR), NO removal activity over a series of the catalyst containing…”
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Effect of CO2 on the DeNOx Activity of a Small Pore Zeolite Copper Catalyst for NH3/SCR by Kim, Young Jin, Min, Kyung Myung, Lee, Jun Kyu, Hong, Suk Bong, Cho, Byong K., Nam, In-Sik

“…Exposure of CuSSZ13 to CO2 at temperatures below 300 °C can deactivate its low‐temperature deNOx activity during NH3/SCR, with the severity of deactivation…”
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NO oxidation activity of Ag-doped perovskite catalysts by DAL YOUNG YOON, EUNHO LIM, YOUNG JIN KIM, JI HO KIM, TAEKYUNG RYU, SUMIN LEE, CHO, Byong K, NAM, In-Sik, JIN WOO CHOUNG, SEUNGBEOM YOO

“…Display Omitted * NO oxidation activity of LaMnO3 is enhanced by the partial substitution of Ag+ for La3+ . * La1-xAg x MnO3 reveals the maximum NO oxidation…”
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Effect of Hydrocarbon on DeNOx Performance of Selective Catalytic Reduction by a Combined Reductant over Cu-Containing Zeolite Catalysts by Heo, Iljeong, Sung, Samkyung, Park, Min Bum, Chang, Tae Sun, Kim, Young Jin, Cho, Byong K, Hong, Suk Bong, Choung, Jin Woo, Nam, In-Sik

“…The effects of hydrocarbons (HCs) on a combined selective catalytic reduction (SCR) system by NH3 and mixed HCs for simulated exhaust over five different types…”
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Effect of speciated HCs on the performance of modern commercial TWCs by Kang, Sung Bong, Nam, Sung Bang, Cho, Byong K., Nam, In-Sik, Kim, Chang Hwan, Oh, Se H.

“…•The CO oxidation activity was hardly affected by the presence of methane or propane.•The NO reduction activity was significantly improved by unsaturated HCs…”
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Combination of Photocatalysis and HC/SCR for Improved Activity and Durability of DeNOx Catalysts by Heo, Iljeong, Kim, Mun Kyu, Sung, Samkyung, Nam, In-Sik, Cho, Byong K, Olson, Keith L, Li, Wei

“…A photocatalytic HC/SCR system has been developed and its high deNOx performance (54.0–98.6% NOx conversion) at low temperatures (150–250 °C) demonstrated by…”
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Kinetic model for modern double-layered Pd/Rh TWC as a function of metal loadings and mileage by Kang, Sung Bong, Nam, In-Sik, Cho, Byong K., Kim, Chang Hwan, Oh, Se H.

“…•Overall reaction kinetics for double-layered Pd/Rh monolith TWC was developed.•3D activity function was developed as a function of Rh loading and…”
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Effect of Aging Atmosphere on Thermal Sintering of Modern Commercial TWCs by Kang, Sung Bong, Han, Seok Jun, Nam, Sung Bang, Nam, In-Sik, Cho, Byong K., Kim, Chang Hwan, Oh, Se H.

“…The effect of aging atmosphere on the sintering behavior of commercial Pd and Rh catalysts as well as the TWC performance thereof has been investigated under…”
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Decomposition of Urea into NH3 for the SCR Process by Yim, Sung Dae, Kim, Soo Jean, Baik, Joon Hyun, Nam, In−Sik, Mok, Young Sun, Lee, Jong-Hwan, Cho, Byong K, Oh, Se H

“…The thermal and catalytic decomposition of urea over a fixed-bed flow reactor system has been examined for the selective catalytic reduction (SCR) of NO x from…”
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Selective catalytic reduction of NOx by diesel fuel: Plasma-assisted HC/SCR system by Cho, Byong K., Lee, Jong-Hwan, Crellin, Chris C., Olson, Keith L., Hilden, David L., Kim, Mun Kyu, Kim, Pyung Soon, Heo, Iljeong, Oh, Se H., Nam, In-Sik

“…[Display omitted] ► A plasma-assisted HC/SCR deNOx system was developed. ► Oxygenated hydrocarbons (OHCs) were produced from diesel fuel by air plasma. ► The…”
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