منابع مشابه
Catalytic activity of Pt nano-particles for H2 formation
Associative desorption of hydrogen at edges and facets on Pt nano-particles was studied using density functional theory. The goal was to identify catalytically active sites on Pt nano-particles for the hydrogen evolution reaction. Since nano-particles used in catalysis typically contain over a thousand atoms, calculations of whole particles are too demanding and the adsorption sites were instea...
متن کاملTailoring nano-catalysts: turning gold nanoparticles on bulk metal oxides to inverse nano-metal oxides on large gold particles.
Highly active/stable inverse catalysts of nano-oxides on large gold particles are designed and tailored. For the gas-phase oxidation of alcohols as a model reaction, the experimental and theoretical results verify that the catalyst activity depends on the gold-oxide interface, and the anti-sintering feature of such an inverse structure endows the catalyst with high stability.
متن کاملGold nano particles catalyzed oxidation of hydrazine by a metallo-superoxide complex: experimental evidences for surface activity of gold nano particles.
Gelatin-capped gold nano particles (GNPs) of diameter 23, 28 and 36 nm were prepared and characterized as almost monodispersed, near-spherical solids. In acidic media, these GNPs at their very low concentration level (∼10(-13) M) catalyze the oxidation of hydrazine by the metallo-superoxide, [(NH(3))(4)Co(III)(μ-NH(2),μ-O(2))Co(III)(NH(3))(4)](NO(3))(4) (1). In the presence of a large excess of...
متن کاملGold nano-particles as electrochemical signal amplifier for immune-reaction monitoring
A new signal amplification strategy based on simultaneous application of gold nanoparticles (AuNPs) and horseradish peroxidase (HRP) was employed to improve the sensitivity of an electrochemical immunoassay for detection of human IgG (hIgG), as a model antigenic protein. This immunoassay system was fabricated on magnetic carboxyl-functionalized multi-walled carbon nanotubes (COOH-MWCNT/Fe3...
متن کاملGold nano-particles as electrochemical signal amplifier for immune-reaction monitoring
A new signal amplification strategy based on simultaneous application of gold nanoparticles (AuNPs) and horseradish peroxidase (HRP) was employed to improve the sensitivity of an electrochemical immunoassay for detection of human IgG (hIgG), as a model antigenic protein. This immunoassay system was fabricated on magnetic carboxyl-functionalized multi-walled carbon nanotubes (COOH-MWCNT/Fe3...
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ژورنال
عنوان ژورنال: ChemInform
سال: 2004
ISSN: 0931-7597,1522-2667
DOI: 10.1002/chin.200416219