Acid-Base Properties of Al203/MgO Oxides: III. Infrared study of adsorption of pyrrole

Johannes A. Lercher, Christian Colombier, Heinrich Noller

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The adsorption of pyrrole over a series of Al203/MgO mixed oxides was studied by IR spectroscopy, since pyrrole could be a potential probe molecule for characterization of basic sites. The adsorption took place either via hydroxyl groups or via cations. The latter was followed by ring opening reactions or splitting off a proton from pyrrole. The feature determining interaction in all structures, was that of the nitrogen atom with an electronacceptor center of the surface. Therefore no estimations could be made about the base strength of the investigated oxides from these data.

Original languageEnglish
Pages (from-to)111-122
Number of pages12
JournalZeitschrift fur Physikalische Chemie
Volume131
Issue number1
DOIs
StatePublished - 1982
Externally publishedYes

Keywords

  • Al0
  • Basic sites
  • IR spectroscopy
  • MgO
  • Pyrrole

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