The origin of the band at 1462 cm-1 generally appearing upon desorption of pyridine from acidic solids. Steps towards a more comprehensive understanding

C. Flego, I. Kiricsi, C. Perego, G. Bellussi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The pyridine adsorption-desorption method, followed by IR spectroscopy, is generally applied for acidity determination of solid catalysts. A peculiar band at 1462 cm-1 was observed by several authors upon pyridine desorption at higher temperatures and was interpreted in various ways. A new complex between Lewis framework acid sites and pyridine is proposed and several evidences are reported.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalCatalysis Letters
Volume35
Issue number1-2
DOIs
Publication statusPublished - Mar 1995

Fingerprint

Pyridine
Desorption
pyridines
desorption
Acidity
acidity
Infrared spectroscopy
Adsorption
catalysts
acids
Catalysts
adsorption
Acids
spectroscopy
pyridine
Temperature

Keywords

  • acidity
  • IR spectroscopy
  • pyridine adsorption-desorption
  • silicaaluminas
  • zeolites

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

The origin of the band at 1462 cm-1 generally appearing upon desorption of pyridine from acidic solids. Steps towards a more comprehensive understanding. / Flego, C.; Kiricsi, I.; Perego, C.; Bellussi, G.

In: Catalysis Letters, Vol. 35, No. 1-2, 03.1995, p. 125-133.

Research output: Contribution to journalArticle

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