| 测定Cu-Al-O复合物催化剂表面酸碱性的微量热法 |
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| 引用本文： | 李大塘,龙云飞,刘胜利,郭军.测定Cu-Al-O复合物催化剂表面酸碱性的微量热法[J].分析测试学报,2001(3). |
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| 作者姓名： | 李大塘 龙云飞 刘胜利 郭军 |
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| 作者单位： | 湘潭师范学院化学系!湖南湘潭411201 |
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| 基金项目： | 湖南省教育厅科研基金资助项目!(00C242) |
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| 摘 要： | 以NH3 -CO2 作探针分子,采用微量热法测定Cu -Al -O复合物催化剂的表面酸碱性。实验结果表明,样品的酸中心强度顺序是:0.5CAO>CAO>2CAO(0.5CAO、CAO、2CAO分别表示复合物中n(Cu)/n(Al)为0.5、1和2),而碱中心强度顺序是:0.5CAO
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| 关 键 词： | Cu-Al-O复合物 表面性质 酸度 碱度 微量热法 |
Quantitative Determination of Acidity and Basicity on Surface of Cu-Al-O Composite Catalyzer by Microcalorimetric Method |
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| LI Da _ tang,LONG Yun _ fei,LIU Sheng _ li,GUO Jun.Quantitative Determination of Acidity and Basicity on Surface of Cu-Al-O Composite Catalyzer by Microcalorimetric Method[J].Journal of Instrumental Analysis,2001(3). |
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| Authors: | LI Da _ tang LONG Yun _ fei LIU Sheng _ li GUO Jun |
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| Abstract: | Acid and base sites on the surface of Cu-Al-O composite oxides catalyzer were measured by microcalorimetry with ammonia and carbon dioxide as absorbed probe molecules. The results indicated that the acidity strength sequence was 0.5 CAO>CAO>2 CAO(0.5 CAO, CAO, 2 CAO repressed n(Cu)/n(Al) of 0.5, 1, 2 in the catalyzer, respectively), whereas basicity strength order was 0.5 CAO
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| Keywords: | Cu-Al-O composite Surface property Acidity Basicity Microcalorimetry |
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