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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 20일 (금요일) 13:00~14:30 |
| Code |
PHYS.P-102 |
| Subject |
Catalytic activity of Fe2O3 nanoparticles deposited on mesoporous Al2O3 bead toward toluene combustion |
| Authors |
CHANHEUM PARK, IL HEE KIM, Sangwook Han, Ho Jong Kim, BYEONG JUN CHA, JAEHWN JEONG, TaeGyun Woo, Hyun Ook Seo1, Young Dok Kim*
Department of Chemistry, Sungkyunkwan University, Korea
1Department of Chemical Energy Engineering, Sangmyung University, Korea
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| Abstract |
By temperature-regulated chemical vapor deposition (TR-CVD), Fe2O3/Al2O3 and NiO/Al2O3 catalysts were made using ferrocene, nickelocene vapor as metal precursor and air as oxidizing agent, respectively. While NiO/Al2O3 showed narrow distribution of NiO nanoparticles with only shell part which of depth were ~50 μm, Fe2O3 nanoparticles could be distributed even at the core part of Al2O3 bead. After post-annealing of these catalysts under air at 450-750 oC, these catalysts were used for total oxidation of toluene in the reaction temperature range of 150-350 oC. Fe2O3/Al2O3 showed significantly higher catalytic activity than NiO-based catalysts, which can be attributed to the wide distribution of Fe2O3 nanoparticles, i.e., very small catalytically active nanoparticles are distributed in the entire structure of the mesoporous supporting material. 100% conversion of toluene into CO2 with a long-term stability of the catalytic activity was realized at 350 oC using Fe2O3/Al2O3 under both dry and humid conditions with a toluene concentration of 10,000 ppm in the feed gas. It is worth noting that the unique structure of the Fe2O3/Al2O3 is stable after air-post-annealing at 750 oC. Our Fe2O3/Al2O3 catalysts are active for toluene oxidation, and stable upon annealing at high temperature, showing that one can use our catalysts as a component of catalytic converter of harmful volatile organic compounds. |
| E-mail |
gcboy91@gmail.com |
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120th General Meeting of the KCS