<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used in order to obtain the information about the surface composition of Pd/ZrO2-TiO2 catalyst and to estimate the changes in the concentration of particular components on its surface during the hydrodechlorination of CCl4. The results demonstrated that the hydrodechlorination process led to the increase in the concentration of chlorine and the drop in the amount of surface accessible palladium, while the quantity of Pd-Cl bounds did not change considerably. It suggested that the presence of ZrO2 protected the surface of the studied catalyst against the formation of PdCl2.</abstract>

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used in order to obtain the information about the surface composition of Pd/ZrO2-TiO2 catalyst and to estimate the changes in the concentration of particular components on its surface during the hydrodechlorination of CCl4. The results demonstrated that the hydrodechlorination process led to the increase in the concentration of chlorine and the drop in the amount of surface accessible palladium, while the quantity of Pd-Cl bounds did not change considerably. It suggested that the presence of ZrO2 protected the surface of the studied catalyst against the formation of PdCl2.

ToF-SIMS studies of the surface of Pd/ZrO2-TiO2 catalyst used in the hydrodechlorination process

Institute of General and Ecological Chemistry, Technical University of Łódź, ul. Żeromskiego 116, 90-924 Łódź, Poland

Polish Journal of Chemical Technology

ToF-SIMS studies of the surface of Pd/ZrO-TiO catalyst used in the hydrodechlorination process

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used in order to obtain the information about the surface composition of Pd/ZrO2-TiO2 catalyst...

ToF-SIMS studies of the surface of Pd/ZrO₂-TiO₂ catalyst used in the hydrodechlorination process

Online veröffentlicht: 06. Nov. 2007

Seitenbereich: 81 - 85

DOI: https://doi.org/10.2478/v10026-007-0060-5

Schlüsselwörter
ToF-SIMS, palladium, catalysis, hydrodechlorination, ZrO, TiO

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