Abstract
With the advent of the Diesel Particulate Filter (DPF), emission strategists are now faced with the decision to use supported or fuel borne catalytic assistance in the regeneration of the DPF. Whilst today, commercial catalysed filters use Platinum Group Metals (PGM) formulations, the high associated cost due to PGM loadings/formulations and world demand on PGM supplies may be crucial to support the adoption of less expensive formulations by replacing the PGM content.
The aim of this work was to evaluate the potential of PGM-free washcoats for catalysed DPF applications, using a soot oxidation study by Thermal Gravimetric Analysis (TGA) method with the following preparation and evaluation of full-size coated DPFs on engine test bench.