Changes in the chemical composition of V2O5-loaded CVC-TiO2 materials with calcination temperatures for NH 3-SCR of NOx

Woojoon Cha; Eunseuk Park; Sungmin Chin; Seong Taek Yun; Jongsoo Jurng

doi:10.1007/s10934-013-9688-0

Changes in the chemical composition of V₂O₅-loaded CVC-TiO₂ materials with calcination temperatures for NH ₃-SCR of NO_x

Woojoon Cha, Eunseuk Park, Sungmin Chin, Seong Taek Yun, Jongsoo Jurng

Department of Earth and Environmental Sciences

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

9 Citations (Scopus)

Abstract

In this study, the aim was to evaluate the effect of calcinations temperature on the catalytic activity and chemical composition of V ₂O₅/TiO₂. We prepared V₂O ₅-loaded CVC-TiO₂ catalysts by a combination of chemical vapor condensation (CVC) and impregnation method at different calcination temperatures. These catalysts were analyzed for their ability to catalyze NH₃-based selective catalytic reduction of NO_x. Compared with V₂O₅ loaded P25-TiO₂ (commercial). V ₂O₅/CVC-TiO₂ catalysts calcined above 200 C exhibited better performance towards NO_x conversion than that by a commercial catalyst prepared using P25-TiO₂ (calcined at 500 C). In addition, the NO_x conversion rate obtained with the sample calcined at 500 C gave the best result (90 %) at a reaction temperature of 200 C. From the XPS results, we observed that the V^4+/5+ ratio was well balanced when the V₂O₅ loaded CVC-TiO₂ sample was calcined at 500 °C.

Original language	English
Pages (from-to)	1069-1074
Number of pages	6
Journal	Journal of Porous Materials
Volume	20
Issue number	5
DOIs	https://doi.org/10.1007/s10934-013-9688-0
Publication status	Published - 2013 Oct

Keywords

Chemical vapor condensation
Formic acid
NO
V

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1007/s10934-013-9688-0

Cite this

@article{52dec5627f884f0da9dd39add884a11d,

title = "Changes in the chemical composition of V2O5-loaded CVC-TiO2 materials with calcination temperatures for NH 3-SCR of NOx",

abstract = "In this study, the aim was to evaluate the effect of calcinations temperature on the catalytic activity and chemical composition of V 2O5/TiO2. We prepared V2O 5-loaded CVC-TiO2 catalysts by a combination of chemical vapor condensation (CVC) and impregnation method at different calcination temperatures. These catalysts were analyzed for their ability to catalyze NH3-based selective catalytic reduction of NOx. Compared with V2O5 loaded P25-TiO2 (commercial). V 2O5/CVC-TiO2 catalysts calcined above 200 C exhibited better performance towards NOx conversion than that by a commercial catalyst prepared using P25-TiO2 (calcined at 500 C). In addition, the NOx conversion rate obtained with the sample calcined at 500 C gave the best result (90 %) at a reaction temperature of 200 C. From the XPS results, we observed that the V4+/5+ ratio was well balanced when the V2O5 loaded CVC-TiO2 sample was calcined at 500 °C.",

keywords = "Chemical vapor condensation, Formic acid, NO, V",

author = "Woojoon Cha and Eunseuk Park and Sungmin Chin and Yun, {Seong Taek} and Jongsoo Jurng",

note = "Funding Information: Acknowledgments This work was supported by the Ministry of Environment (192-091-001), the Ministry of Education, Science and Technology (2011K000750) and the National Research Foundation of Korea Grant funded by the Korean Government(MEST) (2012, University-Institute cooperation program).",

year = "2013",

month = oct,

doi = "10.1007/s10934-013-9688-0",

language = "English",

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journal = "Journal of Porous Materials",

issn = "1380-2224",

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T1 - Changes in the chemical composition of V2O5-loaded CVC-TiO2 materials with calcination temperatures for NH 3-SCR of NOx

AU - Cha, Woojoon

AU - Park, Eunseuk

AU - Chin, Sungmin

AU - Yun, Seong Taek

AU - Jurng, Jongsoo

N1 - Funding Information: Acknowledgments This work was supported by the Ministry of Environment (192-091-001), the Ministry of Education, Science and Technology (2011K000750) and the National Research Foundation of Korea Grant funded by the Korean Government(MEST) (2012, University-Institute cooperation program).

PY - 2013/10

Y1 - 2013/10

N2 - In this study, the aim was to evaluate the effect of calcinations temperature on the catalytic activity and chemical composition of V 2O5/TiO2. We prepared V2O 5-loaded CVC-TiO2 catalysts by a combination of chemical vapor condensation (CVC) and impregnation method at different calcination temperatures. These catalysts were analyzed for their ability to catalyze NH3-based selective catalytic reduction of NOx. Compared with V2O5 loaded P25-TiO2 (commercial). V 2O5/CVC-TiO2 catalysts calcined above 200 C exhibited better performance towards NOx conversion than that by a commercial catalyst prepared using P25-TiO2 (calcined at 500 C). In addition, the NOx conversion rate obtained with the sample calcined at 500 C gave the best result (90 %) at a reaction temperature of 200 C. From the XPS results, we observed that the V4+/5+ ratio was well balanced when the V2O5 loaded CVC-TiO2 sample was calcined at 500 °C.

AB - In this study, the aim was to evaluate the effect of calcinations temperature on the catalytic activity and chemical composition of V 2O5/TiO2. We prepared V2O 5-loaded CVC-TiO2 catalysts by a combination of chemical vapor condensation (CVC) and impregnation method at different calcination temperatures. These catalysts were analyzed for their ability to catalyze NH3-based selective catalytic reduction of NOx. Compared with V2O5 loaded P25-TiO2 (commercial). V 2O5/CVC-TiO2 catalysts calcined above 200 C exhibited better performance towards NOx conversion than that by a commercial catalyst prepared using P25-TiO2 (calcined at 500 C). In addition, the NOx conversion rate obtained with the sample calcined at 500 C gave the best result (90 %) at a reaction temperature of 200 C. From the XPS results, we observed that the V4+/5+ ratio was well balanced when the V2O5 loaded CVC-TiO2 sample was calcined at 500 °C.

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