The effect of supports on coke deposition on supported platinum and platinum-tin catalysts investigated by FT-IR spectroscopy

• Authors: Zenon Sarbak
• Languages of publication: EN

Abstracts

EN

Coke deposit is produced from ethylene on the surface of the platinum and platinum-tin catalysts supported on two various Al2 O3, SiO2 and SiO2 -Al2O3. The coke amount and the structure depend on the type and the amount of the components introduced onto the catalyst support and on the type of the support. It has been found that the surface area of the support has no significant effect on the type of species in the coke deposit. The analysis of the FT-IR spectra has shown the presence of different species on the surface of the catalysts, including carboxyl groups, pseudo-graphite (polyaromatic) structures, polyphenylene groups, acetyl groups, carbonyl groups of acetone and formate type, enol species.

Keywords

EN

FT-IR; coke deposit; Pt-Sn catalysts; Al2O3; SiO2; SiO2-Al2O3.

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2007
• Volume: 9
• Issue: 1
• Pages: 23-26

Dates

published

1 - 1 - 2007

online

3 - 7 - 2007

Contributors

author

Zenon Sarbak

• Laboratory of Adsorption and Catalysis, Faculty of Chemistry, Adam Mickiewicz University, ul. Grunwaldzka 6, 60-780 Poznan´, Poland

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Identifiers

DOI

10.2478/v10026-007-0007-x