Effect of supporting surface layers on catalytic activities of gold nanoparticles in CO oxidation
Article Abstract:
A surface-modification methodology based on the surface of sol-gel synthesis is developed to tailor the surfaces of amorphous silica materials for catalysis applications. Te result indicates that the surface-functionalization sequence is an important factor in determining the catalytic activities of the gold nanoparticles deposited on the surface-modified fumed silica supports.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Surface sol-gel modification of mesoporous silica materials with TiO2 for the assembly of ultrasmall gold nanoparticles
Article Abstract:
A surface sol-gel process technique to accomplish the formation of gold nanoparticles on ordered mesoporous silica materials via the deposition-precipitation (DP) method without the constraint of the low isoelectric point (IEP) of SiO2 surfaces is reported. The study shows that ultrasmall gold nanoparticles are prepared on surface-modified SBA-15 via a DP method.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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XAS study of Au supported on TiO2: influence of oxidation state and particle size on catalytic activity
Article Abstract:
The effect of synthesis and reaction conditions on the structure and activity of Au clusters supported on nanocrystalline and mesoporous TiO2 was investigated. Results of the investigation indicate that oxidized Au is not necessary for high activity.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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