Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene

Guang Lu; Xinyong Li; Zhenping Qu; Qidong Zhao; Ling Zhao; Guohua Chen

doi:10.1016/j.cej.2011.01.095

Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene

Guang Lu, Xinyong Li, Zhenping Qu, Qidong Zhao, Ling Zhao, Guohua Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

27 Citations (Scopus)

Abstract

Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N₂ and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu²⁺/copper species existed over the studied catalysts. The Cu²⁺ species can enhance the low-temperature activity and the highest conversion of NO into N₂. Moreover, the highest conversion of NO into N₂ and low-temperature activity increased with the increase of the Cu²⁺/copper species rate. © 2011 Elsevier B.V.

Original language	English
Pages (from-to)	1128-1133
Journal	Chemical Engineering Journal
Volume	168
Issue number	3
DOIs	https://doi.org/10.1016/j.cej.2011.01.095
Publication status	Published - 15 Apr 2011
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Cu
Ion-exchange
SCR
Ti-PILC
TPR

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title = "Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene",

abstract = "Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N2 and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu2+/copper species existed over the studied catalysts. The Cu2+ species can enhance the low-temperature activity and the highest conversion of NO into N2. Moreover, the highest conversion of NO into N2 and low-temperature activity increased with the increase of the Cu2+/copper species rate. {\textcopyright} 2011 Elsevier B.V.",

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T1 - Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene

AU - Lu, Guang

AU - Li, Xinyong

AU - Qu, Zhenping

AU - Zhao, Qidong

AU - Zhao, Ling

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2011/4/15

Y1 - 2011/4/15

N2 - Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N2 and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu2+/copper species existed over the studied catalysts. The Cu2+ species can enhance the low-temperature activity and the highest conversion of NO into N2. Moreover, the highest conversion of NO into N2 and low-temperature activity increased with the increase of the Cu2+/copper species rate. © 2011 Elsevier B.V.

AB - Cu-ion-exchanged titanium-pillared clays (Cu-Ti-PILCs) were prepared using ion exchange strategy under different pH values and used for selective catalytic reduction (SCR) of NO by propylene. The influences of pH value on the catalytic performance and the nature of copper species were investigated. The results of activity test showed that the highest conversion of NO into N2 and the low-temperature activity increased with the increase of pH value up to 6, and then decreased with the further increase of pH value. The characterization results showed that the copper species were well dispersed over the prepared catalysts, and the different ratios of Cu2+/copper species existed over the studied catalysts. The Cu2+ species can enhance the low-temperature activity and the highest conversion of NO into N2. Moreover, the highest conversion of NO into N2 and low-temperature activity increased with the increase of the Cu2+/copper species rate. © 2011 Elsevier B.V.

KW - Cu

KW - Ion-exchange

KW - SCR

KW - Ti-PILC

KW - TPR

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DO - 10.1016/j.cej.2011.01.095

M3 - RGC 21 - Publication in refereed journal

SN - 1385-8947

VL - 168

SP - 1128

EP - 1133

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 3

ER -

Copper-ion exchanged Ti-pillared clays for selective catalytic reduction of NO by propylene

Abstract

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