A Cu-Pd single-atom alloy catalyst for highly efficient NO reduction.

ABSTRACT: A series of Cu-Pd alloy nanoparticles supported on Al₂O₃ were prepared and tested as catalysts for deNO _x reactions. XRD, HAADF-STEM, XAFS, and FT-IR analyses revealed that a single-atom alloy structure was formed when the Cu/Pd ratio was 5, where Pd atoms were well isolated by Cu atoms. Compared with Pd/Al₂O₃, Cu₅Pd/Al₂O₃ exhibited outstanding catalytic activity and N₂ selectivity in the reduction of NO by CO: for the first time, the complete conversion of NO to N₂ was achieved even at 175 °C, with long-term stability for at least 30 h. High catalytic performance was also obtained in the presence of O₂ and C₃H₆ (model exhaust gas), where a 9

SUBMITTER: Xing F 

PROVIDER: S-EPMC7006621 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature