Application of {(DMF)10Ln2[Pd(CN)4]3}∞ (Ln = Yb, Sm) as lanthanide–palladium catalyst precursors dispersed on sol–gel–TiO2 in the reduction of NO by methane in the presence of oxygen
✍ Scribed by A Rath; E Aceves; J Mitome; J Liu; U.S Ozkan; S.G Shore
- Book ID
- 104421235
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 725 KB
- Volume
- 165
- Category
- Article
- ISSN
- 1381-1169
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✦ Synopsis
Cyanide bridged lanthanide-palladium transition metal complexes were employed as catalyst precursors in the catalytic reduction of NO with methane. Complexes {(DMF) 10 Ln 2 [Pd(CN) 4 ] 3 } ∞ (Ln = Yb, Sm; DMF = dimethyl formamide) were dispersed (10 wt.% loading based upon palladium) on sol-gel titania supports and reduced by ammonia or hydrogen to metallic nanoparticles containing palladium and lanthanide metals. They were tested for catalytic activity in NO reduction by CH 4 in the presence of oxygen. The bimetallic catalysts were found to be active for NO reduction up to the stoichiometric oxygen concentrations. They displayed improved performance over a palladium only catalyst. Catalysts were examined by TEM, and XPS techniques before, during, and after the reaction.