Structural investigation of the promotional effect of hydrogen during the selective catalytic reduction of NOx with hydrocarbons over Ag/Al2O3 catalysts

JP Breen, R Burch, C Hardacre*, CJ Hill

*Corresponding author for this work

Research output: Contribution to journalLetter

109 Citations (Scopus)

Abstract

In situ EXAFS has been used to examine the hydrogen effect on the selective catalytic reduction of NOx over silver/alumina catalysts. For all SCR conditions used, with or without co-reductant (H-2 or CO), the catalyst structure remained the same. Significant changes in the catalyst were only found under reducing conditions. The enhanced activity found in the presence of hydrogen is thought to be due to a chemical effect and not the result of a change in the structure of the active site.

Original languageEnglish
Pages (from-to)4805-4807
Number of pages3
JournalJournal of Physical Chemistry B
Volume109
Issue number11
DOIs
Publication statusPublished - 24 Mar 2005

Keywords

  • H-2
  • SCR
  • PROPANE

Cite this

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title = "Structural investigation of the promotional effect of hydrogen during the selective catalytic reduction of NOx with hydrocarbons over Ag/Al2O3 catalysts",
abstract = "In situ EXAFS has been used to examine the hydrogen effect on the selective catalytic reduction of NOx over silver/alumina catalysts. For all SCR conditions used, with or without co-reductant (H-2 or CO), the catalyst structure remained the same. Significant changes in the catalyst were only found under reducing conditions. The enhanced activity found in the presence of hydrogen is thought to be due to a chemical effect and not the result of a change in the structure of the active site.",
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Structural investigation of the promotional effect of hydrogen during the selective catalytic reduction of NOx with hydrocarbons over Ag/Al2O3 catalysts. / Breen, JP; Burch, R; Hardacre, C; Hill, CJ.

In: Journal of Physical Chemistry B, Vol. 109, No. 11, 24.03.2005, p. 4805-4807.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Structural investigation of the promotional effect of hydrogen during the selective catalytic reduction of NOx with hydrocarbons over Ag/Al2O3 catalysts

AU - Breen, JP

AU - Burch, R

AU - Hardacre, C

AU - Hill, CJ

PY - 2005/3/24

Y1 - 2005/3/24

N2 - In situ EXAFS has been used to examine the hydrogen effect on the selective catalytic reduction of NOx over silver/alumina catalysts. For all SCR conditions used, with or without co-reductant (H-2 or CO), the catalyst structure remained the same. Significant changes in the catalyst were only found under reducing conditions. The enhanced activity found in the presence of hydrogen is thought to be due to a chemical effect and not the result of a change in the structure of the active site.

AB - In situ EXAFS has been used to examine the hydrogen effect on the selective catalytic reduction of NOx over silver/alumina catalysts. For all SCR conditions used, with or without co-reductant (H-2 or CO), the catalyst structure remained the same. Significant changes in the catalyst were only found under reducing conditions. The enhanced activity found in the presence of hydrogen is thought to be due to a chemical effect and not the result of a change in the structure of the active site.

KW - H-2

KW - SCR

KW - PROPANE

U2 - 10.1021/jp050253k

DO - 10.1021/jp050253k

M3 - Letter

VL - 109

SP - 4805

EP - 4807

JO - J. Phys. Chem. B

JF - J. Phys. Chem. B

SN - 1520-6106

IS - 11

ER -