| 赵峰,刘英骏.CuCrO2—CuCr2O4两相共生体系的合成及其对CO—NO反应催化性能的研究[J].分子催化,2001,(3):161-164 |
| CuCrO2—CuCr2O4两相共生体系的合成及其对CO—NO反应催化性能的研究 |
| Preparation of Cu-Cr-O Catalysts Containing both CuCrO2 and CuCr2O4 Phase and their Catalytic Activities for CO-NO Reaction |
| 修订日期：2000-10-16 |
| DOI： |
| 中文关键词: 铜铬复合氧化物 TPR 一氧化碳 一氧化氮 催化性能 催化剂 物相分析 合成 |
| 英文关键词:CuCr\-2O\-4,CuCrO\-2,CO\|NO reaction,TPR |
| 基金项目: |
| 赵峰 刘英骏 |
| 北京大学物理化学研究所, |
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| 中文摘要: |
| 以柠檬酸络合法制备了CuCrO2-CuCr2O4两相共生体系，并对它的催化性能和TPR行为作了考察，结果表明，两相共生对样品的催化性能及TPR行为有显著的影响，两相共生的样品，在Cu/Cr摩尔比为0．7时，具有较高的催化活性，在TPR过程中，具有尖晶石结构的CuCr2O4首先被原成CuCrO2结构，在更高的温度下后者被还原。 |
| 英文摘要: |
| Simultaneous formation of CuCrO\-2 and CuCr\-2O\-4 in Cu\|Cr\|O catalysts by amorphous citrate precursor (ACP) method results in an evident catalytic activity enhancement for CO\|NO reaction and an evident difference in TPR behaviors. Samples containing both CuCrO\-2 and CuCr\-2O\-4 phases tend to be more active than CuCrO\-2 or CuCr\-2O\-4 single phase in catalytic reaction for CO\|NO. Maximum activity is obtained with Cu/Cr mole ratio of 0.7. CuCr\-2O\-4 is reduced by H\-2 into CuCrO\-2 at lower temperatures, while the later is reduced at higher temperatures. |
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