Characterization of acid sites in pentasil zeolites by x-ray photolectron spectroscopy

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(90)90043-J· OSTI ID:5530568

Borade, R B; Adnot, A; Kaliaguine, S ^[1]

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1. Universite LAVAL, Quebec (Canada)

The N{sub 1s} XPS band of pyridine chemisorbed on Al-ZSM-5 zeolite was found to be properly deconvoluted into three component peaks. In a previous contribution these three components were assigned to pyridine chemisorbed on two kinds of Bronsted acid sites and one Lewis acid site. This analysis is extended here to Fe-ZSM-5 and B-ZSM-5. Isomorphous substitution of Fe for Si or Al in the zeolite framework leads to a slight decrease in the binding energy of the N{sub 1s} Lewis component. In the case of B substitution a decrease in the binding energy of all three N{sub 1s} components is observed.

• OSTI ID: 5530568
• Journal Information: Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 126:1; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM
AZINES
BINDING ENERGY
BORON
BROENSTED ACIDS
CHEMICAL REACTIONS
CHEMISORPTION
CRYSTAL STRUCTURE
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON
LEWIS ACIDS
MATERIALS
METALS
MINERALS
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PYRIDINE
PYRIDINES
SEMIMETALS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
ZEOLITES