Synthesis and Characterization of Bismuth-Cerium Oxides for the Catalytic Oxidation of Diesel Soot.

ABSTRACT: In this paper, the syntheses of a set of cerium-bismuth mixed oxides with the formula Ce1-xBixO2-x/2, where the range of x is 0.0 to 1.0 in 10 mol% steps, via co-precipitation methods is described. Two synthesis routes are tested: The "normal" and the so called "reverse strike" (RS) co-precipitation route. The syntheses are performed with an automated synthesis robot. The activity for Diesel soot oxidation is measured by temperature programmed oxidation with an automated, serial thermogravimetric and differential scanning calorimetry system (TGA/DSC). P90 is used as a model soot. An automated and reproducible tight contact between soot and catalyst is used. The synthesized catalysts are characterized in terms of the specific surface area according to Brunauer, Emmett and Teller (SBET), as

SUBMITTER: Hebert SC 

PROVIDER: S-EPMC7143761 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature