Title of article
Adsorption and desorption of dibenzothiophene on Ag-titania studied by the complementary temperature-programmed XPS and ESR
Author/Authors
Alexander Samokhvalov، نويسنده , , Evert C. Duin، نويسنده , , Sachin Nair، نويسنده , , Bruce J. Tatarchuk، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
7
From page
3226
To page
3232
Abstract
Adsorption, desorption and structure of the surface chemical compounds formed upon interaction of dibenzothiophene (DBT) in solution of n-octane with the sulfur-selective Ag/Titania sorbent for the ultradeep desulfurization of liquid fuels was characterized by the temperature-programmed X-ray photoemission spectroscopy (XPS) and Electron Spin Resonance. Adsorption of DBT proceeds via chemisorption via the oxygen-containing surface groups. Desorption of DBT and thermal regeneration of the “spent” Ag/Titania were studied by the complementary temperature-programmed XPS and ESR from 25 °C to 525 °C, in the high vacuum vs. air. The XPS spectrum of the pure DBT is reported for the first time.
Keywords
Dibenzothiophene , Fuel desulfurization sorbent , In-situ temperature-programmed XPS , ESR , Ag/Titania
Journal title
Applied Surface Science
Serial Year
2011
Journal title
Applied Surface Science
Record number
1013801
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