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The factors affecting the hydrogen adsorption on Pt/SO4(2-)-ZrO2 catalyst

Triwahyono, Sugeng and Sarmidi, Mohamad Roji and Abdul Aziz, Ramlan and Yamada, T. and Hattori, H. (2004) The factors affecting the hydrogen adsorption on Pt/SO4(2-)-ZrO2 catalyst. KUSTEM Third Annual Seminar on Sustainbility Science and Management . pp. 85-88.

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Abstract

Hydrogen adsorption was studied for Pt/SO4(2-)-ZrO2 (PSZ) samples modified with Na addition, pyridine preadsorption, and water preadsorption to elucidate the relation between the rate and capacity of hydrogen adsorption and the surface state. The surface states were monitored by XRD, IR, ammonia TPD, and measurement of catalytic activity for cyclohexane isomerization. All the modifications suppressed the hydrogen uptake. It was suggested that Lewis acid sites promote the hydogen uptake by stabilizing spiltover hydrogen atoms.

Item Type:Article
Uncontrolled Keywords:Hydrogen adsorption, catalyst, catalytic activity, protonic acid site, Pt/SO4(2-)-ZrO2
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:4926
Deposited By: Norhani Jusoh
Deposited On:16 Jan 2008 03:59
Last Modified:01 Jun 2010 03:21

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