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Experimental and theoretical studies on the influence of water vapor on the performance of a Ce-Cu-Ti oxide SCR catalyst

► H O inhibits the SCR performance of the Ce-Cu-Ti-O catalyst at low temperatures. ► H O enhances the NO conversion of the Ce-Cu-Ti-O catalyst at high temperatures. ► The presence of H O would greatly decrease the NH adsorption amount. ► NH oxidation at high temperatures decreases with the addition... Full description

Journal Title: Applied Surface Science 01 April 2013, Vol.270, pp.370-376
Main Author: Du, Xuesen
Other Authors: Gao, Xiang , Cui, Liwen , Zheng, Zhizhan , Ji, Peidong , Luo, Zhongyang , Cen, Ke-Fa
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2013.01.032
Link: https://www.sciencedirect.com/science/article/pii/S0169433213000640
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recordid: elsevier_sdoi_10_1016_j_apsusc_2013_01_032
title: Experimental and theoretical studies on the influence of water vapor on the performance of a Ce-Cu-Ti oxide SCR catalyst
format: Article
creator:
  • Du, Xuesen
  • Gao, Xiang
  • Cui, Liwen
  • Zheng, Zhizhan
  • Ji, Peidong
  • Luo, Zhongyang
  • Cen, Ke-Fa
subjects:
  • Selective Catalytic Reduction
  • Ceria Oxide
  • Copper Oxide
  • Anatase
  • Water Vapor
  • Dft Calculation
  • Engineering
ispartof: Applied Surface Science, 01 April 2013, Vol.270, pp.370-376
description: ► H O inhibits the SCR performance of the Ce-Cu-Ti-O catalyst at low temperatures. ► H O enhances the NO conversion of the Ce-Cu-Ti-O catalyst at high temperatures. ► The presence of H O would greatly decrease the NH adsorption amount. ► NH oxidation at high temperatures decreases with the addition of 10% H O. H O inhibits the SCR performance of the Ce-Cu-Ti (CCT) oxide catalyst at low temperatures, while it promotes SCR performance at high temperatures above 300 °C. A combination of experiments and DFT calculations was applied to study this phenomenon. NH adsorption profiles showed that the presence of H O would greatly decrease the NH adsorption amount, especially the weakly adsorbed NH part. The DFT calculations of H...
language: eng
source:
identifier: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2013.01.032
fulltext: fulltext
issn:
  • 0169-4332
  • 01694332
  • 1873-5584
  • 18735584
url: Link


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subjectSelective Catalytic Reduction ; Ceria Oxide ; Copper Oxide ; Anatase ; Water Vapor ; Dft Calculation ; Engineering
description► H O inhibits the SCR performance of the Ce-Cu-Ti-O catalyst at low temperatures. ► H O enhances the NO conversion of the Ce-Cu-Ti-O catalyst at high temperatures. ► The presence of H O would greatly decrease the NH adsorption amount. ► NH oxidation at high temperatures decreases with the addition of 10% H O. H O inhibits the SCR performance of the Ce-Cu-Ti (CCT) oxide catalyst at low temperatures, while it promotes SCR performance at high temperatures above 300 °C. A combination of experiments and DFT calculations was applied to study this phenomenon. NH adsorption profiles showed that the presence of H O would greatly decrease the NH adsorption amount, especially the weakly adsorbed NH part. The DFT calculations of H...
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