| Temperature Programmed Reduction Studies on CeO2-Containing Catalysts |
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| 引用本文： | NoriyoshiKakuta HarunobuOhkita TakanoriMizushima. Temperature Programmed Reduction Studies on CeO2-Containing Catalysts[J]. 中国稀土学报(英文版), 2004, 22(1): 1-6 |
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| 作者姓名： | NoriyoshiKakuta HarunobuOhkita TakanoriMizushima |
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| 作者单位： | DepartmentofMaterialsScience,ToyohashiUniversityofTechnology,1-1Hibarigaoka,Tempakucho,Toyohashi441-8580,Japan |
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| 摘 要： | Temperature programmed reduction (TPR) study was carried out for CeO2/A12O3 and CeO2/ZrO2 catalysts to evaluate oxygen storage property induced by a facile redox cycling of Ce ion. The CeO2/ZrO2 catalyst possesses excellent oxygen storage activity at 373 K after reduction above 1173 K although the oxygen storage of CeO2/Al2O3 catalyst after reduction above 1173 K is poor because of the formation of CeAlO3. Consequently, the oxygen storage on the CeO2/ZrO2 catalyst smoothly occurs from low temperatures when the catalyst is reduced even at high temperatures.
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| 关 键 词： | CeO2 催化剂 TPR 稀土 储氧能力 |
Temperature Programmed Reduction Studies on CeO2-Containing Catalysts |
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| Noriyoshi Kakuta,Harunobu Ohkita,Takanori Mizushima. Temperature Programmed Reduction Studies on CeO2-Containing Catalysts[J]. Journal of Rare Earths, 2004, 22(1): 1-6 |
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| Authors: | Noriyoshi Kakuta Harunobu Ohkita Takanori Mizushima |
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| Abstract: | Temperature programmed reduction (TPR) study was carried out for CeO2/Al2O3 and CeO2/ZrO2 catalysts to evaluate oxygen storage property induced by a facile redox cycling of Ce ion. The CeO2/ZrO2 catalyst possesses excellent oxygen storage activity at 373 K after reduction above 1173 K although the oxygen storage of CeO2/Al2O3 catalyst after reduction above 1173 K is poor because of the formation of CeAlO3. Consequently, the oxygen storage on the CeO2/ZrO2 catalyst smoothly occurs from low temperatures when the catalyst is reduced even at high temperatures. |
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| Keywords: | catalytic chemistry cerium oxide oxygen storage TPR rare earths |
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