Study of perovskite-type oxides and their supported Ag derivatives for catalytic oxidation of diesel soot
β Scribed by Zhiming Liu; Zhengping Hao; Huiping Zhang; Yahui Zhuang
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2002
- Tongue
- English
- Weight
- 105 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0268-2575
- DOI
- 10.1002/jctb.639
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β¦ Synopsis
Abstract
A series of perovskiteβtype oxides and derived Ag catalysts were prepared, and characterized by N~2~βadsorption, Xβray diffraction and Xβray photoelectron spectroscopy. The influences of pretreatment and Ag loading on catalytic activity for diesel soot oxidation were also investigated. Prereduction resulted in a decrease in catalytic activity. An increase in activity with Ag addition was observed, especially with more than 5% Ag loading. This catalyst could be a promising candidate for the catalytic elimination of diesel soot.
Β© 2002 Society of Chemical Industry
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## Abstract Detailed structural studies of vanadia supported on SiO~2~ and modified SiO~2~ (Si~0.8~M~0.2~O~2Β±~~__Ξ΄__~ where M = Al^3+^, Zr^4+^ and Y^3+^) were carried out using different techniques such as powder XRD, IR spectroscopy and ^29^Si, ^27^Al and ^51^V MAS NMR spectroscopy. All samples ex