Pollutant Abatement of Nitrogen-Based Fuel Effluents over Mono- and Bimetallic Pt/Ru Catalysts.

ABSTRACT: Mono- and bimetallic alloy Pt and Ru catalysts supported on γ-Al₂O₃ have been investigated for the reduction of pollutants (NO _x , NH₃, and CO) generated during the continuous combustion of an aqueous urea ammonium nitrate fuel. A Pt/Ru alloy with a Pt25/Ru75 atomic ratio has been found to have higher activity and selectivity than those of a 50/50 alloy and monometallic catalysts. Among monometallic catalysts, Ru was more selective toward N₂ formation, whereas Pt showed a higher selectivity toward NH₃ formation. For Ru, it was observed that the oxidizing atmosphere of NO _x pollutants caused the formation of RuO₂, whereas Ru in the Pt/Ru alloy was stable under these conditions. Temperature

SUBMITTER: Kutteri DA 

PROVIDER: S-EPMC6645125 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature