H2-SCR of NOx on low-SSA CeO2-supported Pd: The effect of Pd particle size
Z Savva, KC Petallidou, CM Damaskinos… - Applied Catalysis A …, 2021 - Elsevier
Applied Catalysis A: General, 2021•Elsevier
Abstract The H 2-SCR of NO was investigated in the 130− 220° C range over low-SSA CeO
2-supported Pd of varying particle size, d Pd (ca. 13− 45 nm). Relationships were derived
between d Pd and the specific integral rate (per gram of Pd or length of metal-support
interface), NO conversion, N 2-selectivity, TOF NO and the concentration of active NO xs.
The large enhancement in the rate of NO conversion per gram of Pd metal over the small Pd
particles was found to be largely related to the increase in the concentration of active NO x …
2-supported Pd of varying particle size, d Pd (ca. 13− 45 nm). Relationships were derived
between d Pd and the specific integral rate (per gram of Pd or length of metal-support
interface), NO conversion, N 2-selectivity, TOF NO and the concentration of active NO xs.
The large enhancement in the rate of NO conversion per gram of Pd metal over the small Pd
particles was found to be largely related to the increase in the concentration of active NO x …
Abstract
The H2-SCR of NO was investigated in the 130−220 °C range over low-SSA CeO2-supported Pd of varying particle size, dPd (ca. 13−45 nm). Relationships were derived between dPd and the specific integral rate (per gram of Pd or length of metal-support interface), NO conversion, N2-selectivity, TOFNO and the concentration of active NOx-s. The large enhancement in the rate of NO conversion per gram of Pd metal over the small Pd particles was found to be largely related to the increase in the concentration of active NOx formed within a zone around the Pd-ceria interface and the rate of H-spillover. The effect of H2O on the integral rate and N2-selectvity as a function of dp (nm) was also investigated.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果