Abstract
Cu/MnO catalysts prepared via reduction of Cu-Mn spinel oxide were investigated for development of active Cu catalysts for the water gas shift reaction (WGSR). A Cu-Mn catalyst active for the WGSR was obtained after high temperature calcination at 900°C and subsequent reduction. The optimum Cu/ Mn ratio for catalytic activity of the Cu-Mn oxide system was 1/2. Nonstoichiometric Cu1.5Mn1.5O4 phase existed stably when copper manganese oxide was calcined above 700°C. The optimized Cu-Mn spinel showed excellent WGSR activity when a larger percentage of CO was used, as in hydrocarbon reforming. Cu-Mn spinel oxides calcined above 900°C were easily reduced. This may be responsible for the high activity of the Cu/ MnO catalyst. Carbon dioxide in the reformed gas significantly depressed WGSR activity below 200°C, while CO conversion reached equilibrium at 200°C in the absence of CO2.
| Original language | English |
|---|---|
| Pages (from-to) | 271-278 |
| Number of pages | 8 |
| Journal | Journal of Catalysis |
| Volume | 215 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Apr 25 2003 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Physical and Theoretical Chemistry
Cite this
Water gas shift reaction for the reformed fuels over Cu/MnO catalysts prepared via spinel-type oxide. / Tanaka, Yohei; Utaka, Toshimasa; Kikuchi, Ryuji; Takeguchi, Tatsuya; Sasaki, Kazunari; Eguchi, Koichi.
In: Journal of Catalysis, Vol. 215, No. 2, 25.04.2003, p. 271-278.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Water gas shift reaction for the reformed fuels over Cu/MnO catalysts prepared via spinel-type oxide
AU - Tanaka, Yohei
AU - Utaka, Toshimasa
AU - Kikuchi, Ryuji
AU - Takeguchi, Tatsuya
AU - Sasaki, Kazunari
AU - Eguchi, Koichi
PY - 2003/4/25
Y1 - 2003/4/25
N2 - Cu/MnO catalysts prepared via reduction of Cu-Mn spinel oxide were investigated for development of active Cu catalysts for the water gas shift reaction (WGSR). A Cu-Mn catalyst active for the WGSR was obtained after high temperature calcination at 900°C and subsequent reduction. The optimum Cu/ Mn ratio for catalytic activity of the Cu-Mn oxide system was 1/2. Nonstoichiometric Cu1.5Mn1.5O4 phase existed stably when copper manganese oxide was calcined above 700°C. The optimized Cu-Mn spinel showed excellent WGSR activity when a larger percentage of CO was used, as in hydrocarbon reforming. Cu-Mn spinel oxides calcined above 900°C were easily reduced. This may be responsible for the high activity of the Cu/ MnO catalyst. Carbon dioxide in the reformed gas significantly depressed WGSR activity below 200°C, while CO conversion reached equilibrium at 200°C in the absence of CO2.
AB - Cu/MnO catalysts prepared via reduction of Cu-Mn spinel oxide were investigated for development of active Cu catalysts for the water gas shift reaction (WGSR). A Cu-Mn catalyst active for the WGSR was obtained after high temperature calcination at 900°C and subsequent reduction. The optimum Cu/ Mn ratio for catalytic activity of the Cu-Mn oxide system was 1/2. Nonstoichiometric Cu1.5Mn1.5O4 phase existed stably when copper manganese oxide was calcined above 700°C. The optimized Cu-Mn spinel showed excellent WGSR activity when a larger percentage of CO was used, as in hydrocarbon reforming. Cu-Mn spinel oxides calcined above 900°C were easily reduced. This may be responsible for the high activity of the Cu/ MnO catalyst. Carbon dioxide in the reformed gas significantly depressed WGSR activity below 200°C, while CO conversion reached equilibrium at 200°C in the absence of CO2.
UR - http://www.scopus.com/inward/record.url?scp=0037669076&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037669076&partnerID=8YFLogxK
U2 - 10.1016/S0021-9517(03)00024-1
DO - 10.1016/S0021-9517(03)00024-1
M3 - Article
AN - SCOPUS:0037669076
VL - 215
SP - 271
EP - 278
JO - Journal of Catalysis
JF - Journal of Catalysis
SN - 0021-9517
IS - 2
ER -