Role of preparation techniques in the activity of Au/TiO2 nanostructures stabilised on SiO2

CO and preferential CO oxidation

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Au colloid and titania in different sequence or Au-oxide nano ensembles preformed in hydrosol were deposited on inert amorphous silica or mesoporous SBA- 15. It was compared with gold colloid adsorbed on TiO2 or silica support. The formation of the Au/TiO2 interface is discussed in terms of surface charges. Preferential CO oxidation in the presence of hydrogen (PROX) has been correlated with the CO oxidation activity and structural properties, perimeter and the influence of the TiO2 morphology on the catalytic activity has been demonstrated.

Original languageEnglish
Pages (from-to)912-919
Number of pages8
JournalTopics in Catalysis
Volume52
Issue number6-7
DOIs
Publication statusPublished - Jun 2009

Fingerprint

Carbon Monoxide
Colloids
Silicon Dioxide
Nanostructures
Silica
Gold Colloid
Oxidation
Surface charge
Oxides
Structural properties
Hydrogen
Catalyst activity
Titanium
Gold
titanium dioxide
SBA-15

Keywords

  • Gold sol
  • Gold/oxide interface
  • Preferential CO oxidation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

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title = "Role of preparation techniques in the activity of Au/TiO2 nanostructures stabilised on SiO2: CO and preferential CO oxidation",
abstract = "Au colloid and titania in different sequence or Au-oxide nano ensembles preformed in hydrosol were deposited on inert amorphous silica or mesoporous SBA- 15. It was compared with gold colloid adsorbed on TiO2 or silica support. The formation of the Au/TiO2 interface is discussed in terms of surface charges. Preferential CO oxidation in the presence of hydrogen (PROX) has been correlated with the CO oxidation activity and structural properties, perimeter and the influence of the TiO2 morphology on the catalytic activity has been demonstrated.",
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author = "A. Beck and A. Horv{\'a}th and G. Stefler and Scurrell, {M. S.} and L. Guczi",
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T1 - Role of preparation techniques in the activity of Au/TiO2 nanostructures stabilised on SiO2

T2 - CO and preferential CO oxidation

AU - Beck, A.

AU - Horváth, A.

AU - Stefler, G.

AU - Scurrell, M. S.

AU - Guczi, L.

PY - 2009/6

Y1 - 2009/6

N2 - Au colloid and titania in different sequence or Au-oxide nano ensembles preformed in hydrosol were deposited on inert amorphous silica or mesoporous SBA- 15. It was compared with gold colloid adsorbed on TiO2 or silica support. The formation of the Au/TiO2 interface is discussed in terms of surface charges. Preferential CO oxidation in the presence of hydrogen (PROX) has been correlated with the CO oxidation activity and structural properties, perimeter and the influence of the TiO2 morphology on the catalytic activity has been demonstrated.

AB - Au colloid and titania in different sequence or Au-oxide nano ensembles preformed in hydrosol were deposited on inert amorphous silica or mesoporous SBA- 15. It was compared with gold colloid adsorbed on TiO2 or silica support. The formation of the Au/TiO2 interface is discussed in terms of surface charges. Preferential CO oxidation in the presence of hydrogen (PROX) has been correlated with the CO oxidation activity and structural properties, perimeter and the influence of the TiO2 morphology on the catalytic activity has been demonstrated.

KW - Gold sol

KW - Gold/oxide interface

KW - Preferential CO oxidation

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JF - Topics in Catalysis

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