| 几种表面酸性测定方法间的相互关联 |
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| 引用本文： | 赵璧英,覃志伟. 几种表面酸性测定方法间的相互关联[J]. 石油化工, 1987, 0(3) |
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| 作者姓名： | 赵璧英 覃志伟 |
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| 作者单位： | 北京大学物理化学研究所，北京大学物理化学研究所 |
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| 摘 要： | 用Hammett指示剂法,在溶液中对正丁胺的吸附等温线法和几种碱的程序升温脱附法对一系列固体催化剂的表面酸性进行了对比测定,讨论了这些方法之间的相互关联。此外,还探讨了用2,6-二甲基吡啶区别氧化物催化剂表面酸位类型的可能性和局限性。
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The Correlation between Different Methods for the Determination of Surface Acidity |
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| Abstract: | The surface acidity of a series of solid catalysts has been determined by means of Hammett indicators, adsorption isotherms of butylamine in solution, and TPD of basic substances. The measurements obtained were contrasted and the correlation between these methods was discussed accordingly. In addition, the possibility and limitation in distinguishing the types of acidic sites on surfaces of catalysts by TPD of 2,6-dimethylpyridine were investigated. |
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