SCR of NOx by C3H6: Comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts

N. A.S. Amin; E. F. Tan; Z. A. Manan

doi:10.1016/j.jcat.2003.10.005

SCR of NO_x by C₃H₆: Comparison between Cu/Cr/CeO₂ and Cu/Ag/CeO₂ catalysts

N. A.S. Amin^*
, E. F. Tan
, Z. A. Manan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

The influence of cocations (Cr and Ag) on the activity of Cu/CeO ₂ catalysts in the selective reduction of NO_x with C ₃H₆ has been investigated in this study. The reduction of NO_x under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO₂ catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H₂. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO₂ have elevated its performance compared to the Cu/Cr/CeO₂ catalyst. By having such salient features, the competitiveness factor (S _SCR-HC) assigned by Cu/Ag/CeO₂ was generally better than that of the other tested catalysts. The presence of O₂ was proven to be a very crucial factor for promoting the selective reduction of NO _x with C₃H₆.

Original language	English
Pages (from-to)	100-106
Number of pages	7
Journal	Journal of Catalysis
Volume	222
Issue number	1
DOIs	https://doi.org/10.1016/j.jcat.2003.10.005
State	Published - 15 Feb 2004
Externally published	Yes

Keywords

Ag
CeO
Cr
Cu
Selective reduction of NO with CH

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

Access to Document

10.1016/j.jcat.2003.10.005

Cite this

@article{7149efb909bd49a1be3ea3a8df92ae2c,

title = "SCR of NOx by C3H6: Comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts",

abstract = "The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H2. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO2 have elevated its performance compared to the Cu/Cr/CeO2 catalyst. By having such salient features, the competitiveness factor (S SCR-HC) assigned by Cu/Ag/CeO2 was generally better than that of the other tested catalysts. The presence of O2 was proven to be a very crucial factor for promoting the selective reduction of NO x with C3H6.",

keywords = "Ag, CeO, Cr, Cu, Selective reduction of NO with CH",

author = "Amin, \{N. A.S.\} and Tan, \{E. F.\} and Manan, \{Z. A.\}",

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doi = "10.1016/j.jcat.2003.10.005",

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TY - JOUR

T1 - SCR of NOx by C3H6

T2 - Comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts

AU - Amin, N. A.S.

AU - Tan, E. F.

AU - Manan, Z. A.

PY - 2004/2/15

Y1 - 2004/2/15

N2 - The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H2. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO2 have elevated its performance compared to the Cu/Cr/CeO2 catalyst. By having such salient features, the competitiveness factor (S SCR-HC) assigned by Cu/Ag/CeO2 was generally better than that of the other tested catalysts. The presence of O2 was proven to be a very crucial factor for promoting the selective reduction of NO x with C3H6.

AB - The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H2. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO2 have elevated its performance compared to the Cu/Cr/CeO2 catalyst. By having such salient features, the competitiveness factor (S SCR-HC) assigned by Cu/Ag/CeO2 was generally better than that of the other tested catalysts. The presence of O2 was proven to be a very crucial factor for promoting the selective reduction of NO x with C3H6.

KW - Ag

KW - CeO

KW - Cr

KW - Cu

KW - Selective reduction of NO with CH

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