Steam Reforming of Ethanol over Co/La<sub>1-<i>x</i></sub>Sr<sub><i>x</i></sub>BO<sub>3</sub> (B = Al, Cr, Mn, Fe) Catalysts
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- Urasaki Kohei
- Dept. of Applied Chemistry, School of Science and Engineering, Waseda University
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- Fukuda Yoshie
- Dept. of Applied Chemistry, School of Science and Engineering, Waseda University
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- Sekine Yasushi
- Dept. of Applied Chemistry, School of Science and Engineering, Waseda University
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- Matsukata Masahiko
- Dept. of Applied Chemistry, School of Science and Engineering, Waseda University
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- Kikuchi Eiichi
- Dept. of Applied Chemistry, School of Science and Engineering, Waseda University
Bibliographic Information
- Other Title
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- Co/La<sub>1-<i>x</i></sub>Sr<sub><i>x</i></sub>BO<sub>3</sub>(B = Al,Cr,Mn,Fe)を用いたエタノールの水蒸気改質反応
- Steam reforming of ethanol over Co/La1-xSr[x]BO3 (B = Al, Cr, Mn, Fe) catalysts
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Abstract
The steam reforming of ethanol for producing hydrogen was evaluated over 5 wt% Co catalysts supported on perovskite-type oxides, La1-xSrxBO3 (B = Al, Cr, Mn, Fe, x = 0-0.2) at 823 K with a molar H2O/C2H5OH ratio of 6. Co/LaAlO3 showed higher catalytic activity and stability than Co catalysts supported on LaCrO3, LaFeO3 and LaMnO3. The molar La/Al ratio markedly affected the stability of Co/LaAlO3 catalyst and a molar La/Al ratio of 1 was the most suitable, suggesting that the properties of the perovskite structure are important in the catalytic activity and stability. Partial substitution of Sr2+ for La3+ in LaAlO3 resulted in further remarkable improvement of catalytic activity and hydrogen yield. We consider that enhanced mobility of lattice oxygen in La1-xSrxAlO3-δ allows more frequent participation in the oxidation of intermediates over metallic cobalt, leading to both high catalytic activity and stability of Co/La1-xSrxAlO3-δ in comparison with Co/LaAlO3.
Journal
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- Journal of the Japan Petroleum Institute
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Journal of the Japan Petroleum Institute 51 (2), 83-87, 2008
The Japan Petroleum Institute
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Details
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- CRID
- 1390001205189688064
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- NII Article ID
- 10021125889
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- NII Book ID
- AA11590615
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- COI
- 1:CAS:528:DC%2BD1cXjtVSgurc%3D
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- ISSN
- 1349273X
- 13468804
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- NDL BIB ID
- 9644423
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed