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Non Pt Catalyst Group in Active Part of New PM Filter
Technical Paper
2008-01-1551
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The aim of this work was a preliminary discernment of the possibility of application of Pd-Au-Ag-Ni-Co (non Pt) nanometric, powder alloy as an active part of a new PM filter. The hollow part structure of TiO2-x-RuO2-x has been proposed as the active layer on the catalyst support, composed of SiC. This structure is used in the catalyst technology. The washcoat of TiO2-x-RuO2-x has been obtained by the Flame Spray Pyrolysis Deposition method (FSPD). The influence of the preparation conditions such as: flow velocity, salt concentration, temperature and process atmosphere on the size and shape of TiO2-x-RuO2-x particles has been determined. The catalyst alloy contains nanoparticles of Pd-Au, which encapsulated the nanoparticles of Ag and Ni. Such prepared nano-particles containing noble metals or metals 4d (Ni, Co, Ag), show high tolerance to sulfur and good reversible properties. The atoms of Pd prefer five coordinated sites of Ti for adsorption. Such an effect has positively influenced good anchoring of the catalyst onto the substrate surface. This material will be examined by SEM, TEM and AFM techniques.
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Citation
Fuc, P., "Non Pt Catalyst Group in Active Part of New PM Filter," SAE Technical Paper 2008-01-1551, 2008, https://doi.org/10.4271/2008-01-1551.Also In
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