Temperature-programmed desorption of water and ammonia on sulphated zirconia catalysts for measuring their strong acidity and acidity distribution |
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| Authors: | Vasant R. Choudhary and Abhijeet J. Karkamkar |
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| Affiliation: | (1) Chemical Engineering Division, National Chemical Laboratory, 411 008 Pune, India |
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| Abstract: | Temperature-programmed desorption (TPD) of water and ammonia over ZrO2 and sulphated ZrO2 prepared by different methods has been investigated for measuring strong acidity and acidity distribution on sulphated zirconia-type solid super-acid catalysts. The TPD of water provides a simple reliable method for this purpose because of the high stability of water molecules under redox conditions |
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| Keywords: | Temperature-programmed desorption sulphated zirconia catalysts acid catalysts acidity distribution |
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