| CeO2改性对CuO/SBA-15催化剂结构及其催化活性的影响 |
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| 引用本文： | 张洪亮,汤常金,高飞,董林.CeO2改性对CuO/SBA-15催化剂结构及其催化活性的影响[J].安徽工业大学学报,2014(1):51-56. |
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| 作者姓名： | 张洪亮 汤常金 高飞 董林 |
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| 作者单位： | [1]安徽工业大学现代分析测试中心,安徽马鞍山243002 [2]南京大学化学化工院,江苏南京210093 [3]南京大学现代分析中心,江苏南京210093 |
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| 基金项目： | 国家自然科学基金项目（20973091,21307001）;安徽工业大学校青年基金（QZ201322） |
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| 摘 要： | 采用浸渍法在Ce-SBA-15载体上负载活性组分CuO,制备一系列不同配比的CuO/Ce-SBA-15催化剂,运用XRD、TEM、N2吸附、TPR、CO-IR等手段考察催化剂CuO/Ce-SBA-15的物理化学性质,并对其进行CO氧化催化活性的测试。活性测试结果表明,CeO2对SBA-15载体的改性有效地提高了CuO/SBA-15催化剂在CO氧化反应中的催化活性。XRD结果表明:CeO2对SBA-15载体的改性可以促进氧化铜在载体表面的分散;进一步结合H2-TPR、CO-IR表征结果,CeO2促进了CuO在载体表面的还原,这些都有利于催化活性的提高。
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| 关 键 词： | CuO/Ce-SBA-15 分散 还原 |
Effect of CeO2 Addition on the Structure and Activity of SBA-15-Supported CuO |
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| ZHANG Hongliang,TANG Changjin,GAO Fei,DONG Lin.Effect of CeO2 Addition on the Structure and Activity of SBA-15-Supported CuO[J].Journal of Anhui University of Technology,2014(1):51-56. |
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| Authors: | ZHANG Hongliang TANG Changjin GAO Fei DONG Lin |
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| Affiliation: | 1. Modem Analysis and Testing Center, Anhui University of Technology, Ma＇anshan 243002, China; 2. Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China; 3.Center of Modem Analysis, Nanjing University, Nanjing 210093, China) |
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| Abstract: | A series of CuO/Ce-SBA-15 catalysts were prepared by impregnation and characterized with XRD, TEM, N2-adsorption, TPR, CO-IR and activity test for oxidation of carbon monoxide. The model reaction of CO＋ O5 tests showed that modification of SBA-15 by CeO2 promoted the activity of CuO/SBA-15 catalysts. XRD results show that dispersion of copper oxides is promoted after the modification by CeO2. Furthermore, H2-TPR and CO-IR results reveal that the reducibility of copper oxides species is increased, in good line with the activities of catalysts. |
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| Keywords: | CuO/Ce-SBA-15 dispersion reducibility |
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