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We have developed a perovskite catalyst, (La 0.7 Ba 0.3 )(Fe 0.776 Nb 0.194 Pd 0.03 )O 3 , applicable to the NO x storage-reduction system. The perovskite catalyst exhibits 47% of NO x conversion rate at 523K under the 54–6s alternation of the lean–rich-burning where the lean and rich gases contain 512ppm NO+5vol.% O 2 and 512ppm...
In order to survey new CO-tolerant anode for the PEFC application, the addition of TaO x and NbO x to the Pt catalyst was examined in the electrochemical oxidation of CO in a sulfuric acid solution. Voltammetric peak potentials for the oxidation of CO pre-adsorbed on the Pt surface shifted to lower potentials by these additives, indicating an enhancement of electro-catalysis of Pt...
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