| 氧化铈在非贵金属燃烧催化剂中热稳定性的研究 |
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| 引用本文： | 王幸宜,吴善良.氧化铈在非贵金属燃烧催化剂中热稳定性的研究[J].环境化学,1994,13(1):16-21. |
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| 作者姓名： | 王幸宜 吴善良 |
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| 作者单位： | 华东理工大学工业催化研究所!上海200237 |
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| 摘 要： | 本文考察了Ｃｅ含量对提高催化剂的热稳定性的作用，并采用Ｘ－射线衍射分析Ｃｅ含量对催化剂活性组成的影响。结果表明，合适的Ｃｅ含量能够提高催化剂的热稳定性，这主要是氧化铈能够阻止ＮｉＣｏ２Ｏ４相的生成，而ＮｉＣｏ２Ｏ４的生成对本系列催化剂的燃烧活性是不利的。实验还表明，在空气气氛下有利于形成ＮｉＣｏ２Ｏ４相，在Ｎ２／Ｈ２Ｏ气氛中不利于ＮｉＣｏ２Ｏ４相的生成。
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| 关 键 词： | 氧化铈 催化剂 燃烧催化剂 |
STUDY ON PROTIVE EFFECTS OF CERIUM ON NON-PRECIOUS METAL COMBUSTION CATALYSTS |
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| Wang Xingyi Wu Shangliang Lu Guanzhong Wang Ren.STUDY ON PROTIVE EFFECTS OF CERIUM ON NON-PRECIOUS METAL COMBUSTION CATALYSTS[J].Environmental Chemistry,1994,13(1):16-21. |
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| Authors: | Wang Xingyi Wu Shangliang Lu Guanzhong Wang Ren |
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| Abstract: | The relation between different Ce/Cu ratios and thermal stability of non-precious metal oxide catalysts, and/or the phase structure of these catalysts were studied. The results are that the proper cerium content can promote thermal stability of catalysts, because cerium oxide can resist to the formation of phase NiCo2O4, which is unfavourable to combustion activity of catalysts in this series. Calcinated in air, NiCo2O4 spinel form easily, while in N2/H2O, it does difficultly. |
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| Keywords: | cerium oxide non-precious metal catalyst combustion catalyst |
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