Ethylene adsorption on Al{sub 2}O{sub 3}-supported Pt, Pt-Sn, and Pt-In catalysts

Journal Article · Mon Apr 15 00:00:00 EDT 1996 · Journal of Catalysis

DOI:https://doi.org/10.1006/jcat.1996.0129· OSTI ID:447651

Passos, F B; Schmal, M ^[1]; Vannice, M A ^[2]

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1. Universidade Federal do Rio de Janeiro (Brazil)
2. Pennsylvania State Univ., University Park, PA (United States)

Adsorption of ethylene on selected Al{sub 2}O{sub 3}-supported Pt, Pt-Sn, and Pt-In catalysts was studied at 300 K. Sn and In decreased ethylene uptake. Integral, isothermal heats of adsorption were measured to be around 21 kcal/mol and not significantly altered by the presence of Sn or In. Decomposition of ethylene upon absorption is suppressed by the addition of Sn or In,except for highly dispersed Pt. The heat of irreversible adsorption of C{sub 2}H{sub 4} on Al{sub 2}O{sub 3}, In/Al{sub 2}O{sub 3}, and Sn/Al{sub 2}O{sub 3} without Pt was 4.9, 6.6, and 9.5 kcal/mol, respectively. 45 refs., 4 figs., 3 tabs.

• OSTI ID: 447651
• Journal Information: Journal of Catalysis, Journal Name: Journal of Catalysis Journal Issue: 1 Vol. 160; ISSN 0021-9517; ISSN JCTLA5
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION HEAT
ALUMINIUM OXIDES
CATALYST SUPPORTS
ETHYLENE
INDIUM
PLATINUM
SORPTION
SORPTIVE PROPERTIES
TEMPERATURE DEPENDENCE
TIN