Different morphologies on Cu-Ce/TiO₂ catalysts for the selective catalytic reduction of NO_x with NH₃ and DRIFTS study on sol-gel nanoparticles.

ABSTRACT: The copper-cerium binary oxide catalysts supported by titanium dioxide with nanosphere core-shell structures, nanotube (TNT) core-shell structures, impregnation (imp) nanoparticles and sol-gel nanoparticles were prepared for NH₃-SCR of NO_x under medium-low temperature conditions. The effect of different morphologies on the Cu-Ce/TiO₂ catalysts was comprehensively studied through physicochemical characterization. The results showed that the sol-gel nanoparticles exhibited 100% NO_x reduction efficiency in the temperature range of 180-400 °C. Compared with the other catalysts, the sol-gel nanoparticle catalyst had the highest dispersion and lowest crystallinity, indicating that morphology played an important role in the NH₃-

SUBMITTER: Zhuang K 

PROVIDER: S-EPMC10472399 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature