ISSN:
1572-879X
Keywords:
pyridine adsorption
;
sulfated zirconia
;
infrared
;
acid sites
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Pyridine adsorption on sulfated zirconia (SO 2− 4 -ZrO2) provides evidence for infrared bands characteristic of both Brønsted and Lewis acid sites. Samples treated at 100°C retain water and have a higher fraction of Brønsted acidity than when the sample is treated at 400°C. The fraction of Brønsted acid sites observed for SO 2− 4 -ZrO2 is the same in the presence or absence of supported Pt. Based on pyridine adsorption, exposure to gaseous hydrogen at 100 or 150°C did not significantly alter the fraction of Brønsted acid sites following the exposure to hydrogen.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00807114
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