Triwahyono, Sugeng and Abdul Jalil, Aishah and Shamsuddin, Mustaffa and Hamdan, Halimaton (2005) The effect of sulfate ion on the hydrogen adsorption over Pt/sulfate-ZrO2 catalyst. In: 2nd International Conference on Chemical and Bioprocess Engineering in conjunction with 19th Symposium of Malaysian Chemical Engineers (SOMChE 2005), 8-10 December 2005, Kota Kinabalu, Sabah.
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Abstract
The influence of sulfate ion on the hydrogen adsorption over Pt/sulfate-ZrO2, has been studied. Pt/sulfate-ZrO2 samples were prepared by impregnation of Zr(OH)4 with 0.5N, 1.0N, 2.0N and 4.0N of sulfate ion and calcined at 873 K, followed by addition of 0.5wt% Pt. XRD, nitrogen physisorption and ammonia TPD have been used to monitor the physical structure of catalyst. Adsorption of hydrogen was carried out at 523 K for 8 h. The increase of sulfate ion up to 4.0 N increased the hydrogen uptake markedly. The presence of sulfate ion on catalysts exerts a promotive effect on the hydrogen uptake rate due to the development of medium and strong acid sites.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Hydrogen adsorption, pt/sulfate-ZrO2, strong acid |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Chemical and Natural Resources Engineering |
| ID Code: | 5379 |
| Deposited By: | Norhani Jusoh |
| Deposited On: | 14 Apr 2008 04:01 |
| Last Modified: | 01 Jun 2010 15:29 |
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