Coordination and oxidation states of iron incorporated into MCM-41

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Low iron content Fe-MCM-41 (Si/Fe = 139) samples are characterized under in situ redox conditions by TPR, IR and Mössbauer spectroscopy. In the mesoporous structure full reversibility of the Fe3+ ↔ Fe2+ transition is found. Different types of low coordinations are suggested for Fe2+. Reductions in hydrogen and carbon monoxide are compared, the possible role of silanolic -OH groups is discussed and propagation of reduction via (H2)+ ions is also suggested. A comparison is made with samples of higher iron contents (Si/Fe = 77, 20 and 12).

Original languageEnglish
Pages (from-to)1347-1354
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume142 B
Publication statusPublished - 2002

Fingerprint

Multicarrier modulation
Iron
iron
Oxidation
oxidation
Carbon Monoxide
Carbon monoxide
carbon monoxide
Hydrogen
Spectroscopy
Ions
propagation
hydrogen
spectroscopy
ions
MCM-41
Oxidation-Reduction

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Coordination and oxidation states of iron incorporated into MCM-41. / Lázár, K.; Páł, Borbély G.; Szegedi, A.; Beyer, H. K.

In: Studies in Surface Science and Catalysis, Vol. 142 B, 2002, p. 1347-1354.

Research output: Contribution to journalArticle

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