| 低温陈化法制备SO42-/ZrO2-TiO2超强酸及其催化性能和稳定性研究 |
| Study on Catalytic Properties and Stability of SO42-/ZrO2-TiO2 Solid Superacid Prepared by Ageing Method at Low Temperature |
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| 摘要: 本文采用低温陈化法制备了SO42-/ZrO2-TiO2固体超强酸,并将其用于催化乙酸正丁酯的酯化反应,采用TEM、IR和XRD等对样品进行了检测。结果表明,低温陈化的样品具有较强的酸性和催化活性,空气中放置30天后其酸性和催化活性变化不大。XRD谱图显示,低温陈化的样品经550℃焙烧后出现了较强的锐钛矿晶相衍射峰。 |
| 关键词: 低温陈化 超强酸 稳定性 |
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| Abstract: In this paper, SO42-/ZrO2-TiO2 solid superacid has been prepared by ageing method at low temperature and it can be used to catalyze esterification of n-butyl acetate. The samples were tested by TEM, IR and XRD, and the results indicate that the acidity and catalytic activity of sample ageing at low temperature are stronger than others. The changes of acidity and catalytic activity of sample placed 30 days in the air are not great. The patterns of XRD show that stronger crystal diffraction peak of anatase appeared in aged sample at low temperature after baking at 500℃。 |
| Keywords: ageing at low temperature solid superacid stability |
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| 陈同云,古绪鹏,胡祥余.低温陈化法制备SO42-/ZrO2-TiO2超强酸及其催化性能和稳定性研究[J].无机化学学报,2002,18(4):378-382. |
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