Restructuring and redispersion of silver on SiO2 under oxidizing/Reducing atmospheres and its activity toward CO oxidation
Article Abstract:
The effects of oxygen-hydrogen pretreatments of nanosilver catalysts in cycle mode on the structure and particle size of silver particles, and subsequently the activity of the catalyst toward CO oxidation are reported. The catalytic behavior of silver catalyst is associated with physical changes in silver crystallines because of surface restructuring and crystalline redispersion during the course of oxygen-hydrogen pretreatment steps.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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In situ depositing silver nanoclusters on silk fibroin fibers supports by a novel biotemplate redox technique at room temperature
Article Abstract:
Floriated clusters of silver nanocrystallites, which consist of polycrystalline grains about 5nm in diameter is successfully prepared on silk fibroin fibers (SFFs) through an in situ biotemplate redox approach at room temperature. The morphologies of silver nanoclusters were mostly attributed to the concentration of silver nitrate solution as well as special configurations and structures of silk fibroin macromolecules.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Stability of nanocrystals: Thermodynamic analysis of oxidation and re-reduction of cobalt in water/hydrogen mixtures
Article Abstract:
A study on the stability of nanosized metallic cobalt crystallites in water/hydrogen mixtures with special emphasis on the stability of the small crystalline under Fischer-Tropsch synthesis conditions is reported. It is shown that spherical cobalt crystallites with a diameter less than 4.4 nm are likely to be oxidized under realistic Fischer-Tropsch synthesis conditions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
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