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- W2088659153 abstract "We present the analysis of the catalytic activity of gold nanoparticles in aqueous solution as a function of temperature. As a model reaction, the reduction of p-nitrophenol (Nip) by sodium borohydride (BH4–) is used. The gold nanoparticles are immobilized on cationic spherical polyelectrolyte brushes that ensure their stability against aggregation. High-resolution transmission electron microscopy shows that the Au nanoparticles are faceted nanocrystals. The average size of the nanoparticles is 2.2 nm, and the total surface area of all nanoparticles could be determined precisely and was used in the subsequent kinetic analysis. Kinetic data have been obtained between 10 and 30 °C by monitoring the concentrations of Nip and BH4– by UV–vis spectroscopy. The reaction starts after an induction time t0, and the subsequent stationary phase yields the apparent reaction rate, kapp. All kinetic data could be modeled in terms of the Langmuir–Hinshelwood model; that is, both reactants must be adsorbed onto the surface to react. The analysis of the temperature dependence of kapp leads to the heat of adsorption of both Nip and BH4– and the surface of the Au nanoparticles. Moreover, the true activation energy of the surface reaction is obtained. The analysis of t0 reveals clearly that the induction period is not related to the limitations due to diffusion but to the surface restructuring of the Au nanoparticles induced by the adsorbed Nip. The rate 1/t0 of this substrate-induced surface restructuring is found to be proportional to the square of the surface coverage, θNip, by Nip and therefore points to a cooperative process." @default.
- W2088659153 created "2016-06-24" @default.
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- W2088659153 date "2011-06-28" @default.
- W2088659153 modified "2023-10-09" @default.
- W2088659153 title "Catalytic Activity of Faceted Gold Nanoparticles Studied by a Model Reaction: Evidence for Substrate-Induced Surface Restructuring" @default.
- W2088659153 cites W1963885029 @default.
- W2088659153 cites W1966876812 @default.
- W2088659153 cites W1970013931 @default.
- W2088659153 cites W1974353039 @default.
- W2088659153 cites W1974636056 @default.
- W2088659153 cites W1975795245 @default.
- W2088659153 cites W1978267907 @default.
- W2088659153 cites W1979017946 @default.
- W2088659153 cites W1979023971 @default.
- W2088659153 cites W1980412838 @default.
- W2088659153 cites W1981921119 @default.
- W2088659153 cites W1983663227 @default.
- W2088659153 cites W1983708280 @default.
- W2088659153 cites W1983814742 @default.
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- W2088659153 cites W1987726875 @default.
- W2088659153 cites W1988291528 @default.
- W2088659153 cites W1989282685 @default.
- W2088659153 cites W1992083269 @default.
- W2088659153 cites W1992828658 @default.
- W2088659153 cites W1993669208 @default.
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- W2088659153 cites W2022006299 @default.
- W2088659153 cites W2022228194 @default.
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- W2088659153 doi "https://doi.org/10.1021/cs200208a" @default.
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