DeNO _x performance enhancement of Cu-based oxides via employing a TiO₂ phase to modify LDH precursors.

ABSTRACT: CuAl-LDO, CuAl-LDO/TiO₂ and CuAl-LDO/TiO₂NTs catalysts were obtained from TiO₂ modified LDHs precursor which were prepared by in situ assembly method. Then catalysts were evaluated in the selective catalytic reduction of NO _x with NH₃(NH₃-SCR), and the results showed that the CuAl-LDO/TiO₂NTs catalyst exhibited preferable deNO _x performance (more than 80% NO _x conversion and higher than 90% N₂ selectivity at a temperature range of 210-330 °C) as well as good SO₂ resistance. With the aid of series of characterizations such as XRD, N₂ adsorption/desorption, XPS, NH₃-TPD, H₂-TPR, and in situ DRIFTS, it coul

SUBMITTER: Du Y 

PROVIDER: S-EPMC8968189 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature