Improved sulfur resistance of Pt-Sn/γ-Al
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Grisel Corro; J.L.G. Fierro; Ramón Montiel; Fortino Bañuelos
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Article
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2005
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Elsevier Science
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English
⚖ 347 KB
The selective catalytic reduction (SCR) of NO with C 3 H 8 was studied over unsulfated and pre-sulfated 1% Pt/␥-Al 2 O 3 , and 1% Pt-2% Sn/␥-Al 2 O 3 catalysts. Carbon residues deposited were evaluated on all samples, after 12 h of C 3 H 8 -NO-O 2 -SO 2 reaction. X-ray photoelectron spectra (XPS) we