Enhancement of catalytic activity in NH₃-SCR reaction by promoting dispersibility of CuCe/TiO₂-ZrO₂ with ultrasonic treatment.

ABSTRACT: A series of CuCe-modified TiO₂-ZrO₂ catalysts synthesized by stepwise impregnation method and ultrasonic-assisted impregnation method were investigated to research the removal of NO in the simulated flue gas. Results showed that the CuCe/TiO₂-ZrO₂ catalyst prepared by ultrasonic-assisted impregnation method exhibited the superior NO conversion, in which higher than 85% NO was degraded at the temperature range of 250-400 °C and the highest NO conversion of 94% at 350 °C. It proves that ultrasonic treatment can markedly improve the performance of catalysts. The effect of ultrasonic enhancement on CuCe/TiO₂-ZrO₂ was comprehensively studied through being characterized by physicochemical characterization. Results reveal that the

SUBMITTER: Zhang W 

PROVIDER: S-EPMC7816018 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature