Catalytic cooperation between Ru and Pd atoms on hierarchical porous Ce-based oxide for boosting engine exhaust purification.

ABSTRACT: Simultaneous oxidation of soot and CH₄ emitted from natural gas-diesel dual fuel engine is a new challenge. Herein, a robust catalyst of binary Ru-Pd components supported on three-dimensional ordered macro-mesoporous cerium-zirconium oxide (RuPd/3DOMM-CZO) is elaborately constructed. Ordered macro-mesopore structure in novel hierarchical porous cerium-zirconium oxide can respectively enhance mass transfer of soot and gaseous reactants, and binary Ru-Pd active components can improve activation for NO and CH₄. RuPd/3DOMM-CZO catalyst exhibits excellent catalytic performance and stability during simultaneous soot and CH₄ oxidation. Based on the results of characterizations and theoretical calculations, Ru site in binary Ru-Pd components is responsible for cata

SUBMITTER: Xu L 

PROVIDER: S-EPMC12371115 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature