Thermodynamics of carbon monoxide adsorption on polycrystalline titania studied by static adsorption microcalorimetry

Xinyu Xia, Wilma Busser, Jennifer Strunk, Martin Muhler

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The adsorption of CO on polycrystalline TiO 2 was investigated by static adsorption microcalorimetry. The initial differential heat of adsorption (q diff,0) of CO on polycrystalline titania is 40 kJ/mol, and the standard adsorption entropy (Δs 0) is -104 J mol -1 K -1. These results are consistent with those derived from temperature-programmed desorption and FTIR results in the literature. The good reproducibility of the isotherms and the stable q diff indicate that the lattice oxygen and hydroxyl groups on titania surface are basically not reactive to adsorbed CO.

Original languageEnglish
Pages (from-to)11063-11066
Number of pages4
JournalLangmuir
Volume23
Issue number22
DOIs
StatePublished - 23 Oct 2007
Externally publishedYes

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