Studies of supported nickel catalysts by X-ray photoelectron and ion scattering spectroscopies

Journal Article · Thu Jul 26 04:00:00 EDT 1979 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100478a015· OSTI ID:6917193

Wu, M; Hercules, D M

Studies of supported nickel catalysts by X-ray photoelectron and ion scattering spectroscopies provided evidence that nickel does not interact with a silica support but forms nickel monoxide; that on ..gamma..-alumina, low nickel contents form two nickel species which interact with the support, of which one is in tetrahedral alumina sites and difficult to reduce and the other, in octahedral sites and easy to reduce; that at higher calcination temperatures, nickel in octahadral sites diffuses to tetrahadral sites; and that higher nickel loadings on ..gamma..-alumina, nickel monoxide forms on top of the interacting nickel species. The studies were performed with 2-33.2Vertical Bar3< nickel on ..gamma..-alumina and 4-35Vertical Bar3< nickel on silica, prepared by impregnation with nickel nitrate and calcined at 400/sup 0/-600/sup 0/C.

• Research Organization: Univ. Pittsb.
• OSTI ID: 6917193
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:15; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical &amp; Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
METALS
MINERALS
NICKEL
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TRANSITION ELEMENTS