| 李凝.不同的制备方法对Co3O4-CeO2催化剂的影响[J].分子催化,2010,(5):0 |
| 不同的制备方法对Co3O4-CeO2催化剂的影响 |
| Preparation methods for Co3O4-CeO2 catalytic properties of research |
| 投稿时间：2010-06-04 修订日期：2010-07-18 |
| DOI： |
| 中文关键词: Co3O4 CeO2 制备方法 |
| 英文关键词:Co3O4 CeO2 preparation method |
| 基金项目:广西自然科学基金项目（桂科自0728217），广西科学技术开发项目（桂科能0842003-36） |
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| 中文摘要: |
| 用水热法、共沉淀法、柠檬酸络合物法和多元醇法分别合成了铈钴摩尔比1:1的Co3O4-CeO2催化剂，并用XRD、TPR、TPD、FT-IR、BET等对催化剂的晶相结构、还原性能、吸附性能及比表面积等进行了表征。结果表明，制备方法对Co3O4-CeO2催化剂的催化性能具有较大的影响，其中多元醇法制备的催化剂能促进Co3O4和CeO2的相互作用，该催化剂还原温度较低、CO脱附面积较大，在140℃温度下，CO的转化率达到90%以上。 |
| 英文摘要: |
| Co3O4-CeO2 catalysts were prepared by hydrothermal method, precipitation method, citric acid complex method and polyatomic alcohol method. The crystal structure, reduction the properties, adsorption properties and specific surface were investigated by XRD, TPR, TPD, FT-IR, BET. The results show that the preparation methods make great effects on the catalytic properties of the Co3O4-CeO2. The catalyst which was prepared by the polyatomic alcohol method can promote the interaction of the Co3O4 and CeO2. The catalyst has lower reduction temperature , larger CO desorbtion area, the conversion rate of CO can reach to 90% in 140 ℃ temperature. |
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