Nitrogen oxides emitted from diesel vehicle exhaust seriously endanger the atmospheric environment and human health, which have attracted people’s attention. Among numerous nitrogen oxide (NOx) removal technologies, photocatalytic of NOx SCR received widespread The treatment technology is a good choice due to its mild reaction conditions low costs. Moreover, NH3-SCR has been widely used in deni...

Vanadium-based selective catalyst reduction (V-SCR) has made significant contributions to De-NOx of diesel vehicles. However, the two main components, V 2 O 5 and WO 3 , are volatile toxic. Therefore, there some restrictions for its application on heavy duty vehicles (HDDV) in CHINA VI stage. In view this problem, volatilization rates kinds volatiles under different inlet temperature test durat...

In the present work, the effect of several parameters involved in the preparation of PdCe-HMOR catalysts active for NOx selective catalytic reduction with methane (NOx CH4-SCR) was studied. Results show that the catalytic performance of Pd-HMOR is better when palladium is introduced by ion-exchange, namely at room temperature. It was also shown that Pd loading does not influence the formation o...

Abstract In this work, two palladium-based catalysts with either ZSM-5 or Zeolite Y as support material are tested for their performance in selective catalytic reduction of NOx hydrogen (H 2 -SCR). The ligh-toff measurements synthetic exhaust gas mixtures typical combustion engines supplemented by detailed catalyst characterization comprising N physisorption, X-ray powder diffraction (XRD), tem...