Ammonium Ion Enhanced V2O5-WO3/TiO2 Catalysts for Selective Catalytic Reduction with Ammonia
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作者:
Lee, Min Seong
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Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Lee, Min Seong
[1
,2
]
Kim, Sun-, I
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Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Kim, Sun-, I
[1
]
Jeong, Bora
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Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Jeong, Bora
[1
]
Park, Jin-Woo
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Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South Korea
NANO Co Ltd, Sangju 37257, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Park, Jin-Woo
[2
,3
]
Kim, Taehyo
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Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Kim, Taehyo
[1
]
Lee, Jung Woo
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Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Lee, Jung Woo
[2
]
Kwon, Gibum
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Univ Kansas, Dept Mech Engn, Lawrence, KS 66045 USAKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Kwon, Gibum
[4
]
Lee, Duck Hyun
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Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South KoreaKorea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
Lee, Duck Hyun
[1
]
机构:
[1] Korea Inst Ind Technol, Green Mat & Proc R&D Grp, Ulsan 44413, South Korea
[2] Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South Korea
[3] NANO Co Ltd, Sangju 37257, South Korea
[4] Univ Kansas, Dept Mech Engn, Lawrence, KS 66045 USA
Selective catalytic reduction (SCR) is the most efficient NOX removal technology, and the vanadium-based catalyst is mainly used in SCR technology. The vanadium-based catalyst showed higher NOX removal performance in the high-temperature range but catalytic efficiency decreased at lower temperatures, following exposure to SOX because of the generation of ammonium sulfate on the catalyst surface. To overcome these limitations, we coated an NH4+ layer on a vanadium-based catalyst. After silane coating the V2O5-WO3/TiO2 catalyst by vapor evaporation, the silanized catalyst was heat treated under NH3 gas. By decomposing the silane on the surface, an NH4+ layer was formed on the catalyst surface through a substitution reaction. We observed high NOX removal efficiency over a wide temperature range by coating an NH4+ layer on a vanadium-based catalyst. This layer shows high proton conductivity, which leads to the reduction of vanadium oxides and tungsten oxide; additionally, the NOX removal performance was improved over a wide temperature range. These findings provide a new mothed to develop SCR catalyst with high efficiency at a wide temperature range.
机构:
Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Bae, Young Kyu
Kim, Tae-Wan
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Tae-Wan
Kim, Jeong-Rang
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Jeong-Rang
Kim, Youngmin
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Youngmin
Ha, Kyoung-Su
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Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Ha, Kyoung-Su
Chae, Ho-Jeong
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
机构:
Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Bae, Young Kyu
Kim, Tae-Wan
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Tae-Wan
Kim, Jeong-Rang
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Jeong-Rang
Kim, Youngmin
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Kim, Youngmin
Ha, Kyoung-Su
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Sogang Univ, Dept Chem & Biomol Engn, 35 Baekbeom Ro, Seoul 04107, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea
Ha, Kyoung-Su
Chae, Ho-Jeong
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Korea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South KoreaKorea Res Inst Chem Technol, Chem & Proc Technol Div, 141 Gajeong Ro, Daejeon 34114, South Korea