2023
DOI: 10.3390/nano13050873
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Ag Catalysts Supported on CeO2, MnO2 and CeMnOx Mixed Oxides for Selective Catalytic Reduction of NO by C3H6

Abstract: In the present study CeO2, MnO2 and CeMnOx mixed oxide (with molar ratio Ce/Mn = 1) were prepared by sol-gel method using citric acid as a chelating agent and calcined at 500 °C. The silver catalysts (1 wt% Ag) over the obtained supports were synthesized by the incipient wetness impregnation method with [Ag(NH3)2]NO3 aqueous solution. The selective catalytic reduction of NO by C3H6 was investigated in a fixed-bed quartz reactor using a reaction mixture composed of 1000 ppm NO, 3600 ppm C3H6, 10 vol.% O2, 2.9 v… Show more

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Cited by 2 publications
(2 citation statements)
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“…However, the partial incorporation of Mn as well as Y into the ceria fluorite phase cannot be excluded. This is consistent with our recent study on Ag/CeMnO x catalysts, where a "patchwork" domain microstructure composed of nanocrystallites enriched by either Mn or Ce was revealed for the mixed oxide support [28].…”
Section: Raman Spectroscopysupporting
confidence: 93%
See 1 more Smart Citation
“…However, the partial incorporation of Mn as well as Y into the ceria fluorite phase cannot be excluded. This is consistent with our recent study on Ag/CeMnO x catalysts, where a "patchwork" domain microstructure composed of nanocrystallites enriched by either Mn or Ce was revealed for the mixed oxide support [28].…”
Section: Raman Spectroscopysupporting
confidence: 93%
“…Based on the above studies, the aim of this work is to explore the potential to use manganese oxide (MnO x ), cerium oxide (CeO 2 ), and mixed oxide (CeMnO x ) that have been previously studied as supports for Ag catalysts in the selective catalytic reduction of NO with hydrocarbons (HC-SCR) [28] in the NO-SCR by NH 3 , as well as to estimate the impact of yttrium doping on the materials' performance.…”
Section: Introductionmentioning
confidence: 99%