2014
DOI: 10.1002/marc.201300794
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PS Microspheres Coated by AuNPs via Thermodynamic Driving Heterocoagulation and Their High Catalytic Activity

Abstract: A unique method of fabricating PS/AuNPs composite particles in ex situ mode is proposed on the basis of thermodynamically driving mechanism. It is facile and versatile as it eliminates the need for surface functionalizations and modifications of both PS microspheres and AuNPs. The PS/AuNPs composite particles take on a raspberry-like morphology with controllable coverage according to some thermodynamic factors, which have been extensively characterized by scanning electron microscopy, transmission electron mic… Show more

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Cited by 9 publications
(8 citation statements)
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“…Recently, noble metal NPs such as gold, silver and palladium have been used as catalyst for the degradation of various organic dyes. [10][11][12][13][14] In comparison to gold and palladium, preparation of AgNPs is important due to its low cost, high photostability, abundance, environmentally benign nature and size and shape dependent catalytic properties. [15][16][17][18][19] Among AgNPs of various shapes, preparation of quasi-spherical AgNPs has attracted lot of research interest due to their excellent catalytic efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…Recently, noble metal NPs such as gold, silver and palladium have been used as catalyst for the degradation of various organic dyes. [10][11][12][13][14] In comparison to gold and palladium, preparation of AgNPs is important due to its low cost, high photostability, abundance, environmentally benign nature and size and shape dependent catalytic properties. [15][16][17][18][19] Among AgNPs of various shapes, preparation of quasi-spherical AgNPs has attracted lot of research interest due to their excellent catalytic efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…The thermodynamically triggered assembly approach has been exploited before to yield diverse raspberry‐like structures with controlled morphology . In our case it represents a potential mechanism that, combined with the gradual morphology change proposed herein, allows us to tailor the interaction in a specific directional fashion.…”
Section: Resultsmentioning
confidence: 89%
“…The electric properties of PS particles can be modified by physical or chemical methods, including surface coating by conductive polymers [ 36 , 37 , 38 ], surface decorating with conductive nanoparticles [ 39 , 40 , 41 ], or surface modification by sulfonation processes [ 42 , 43 , 44 ]. As demonstrated in our recent research [ 42 ], the sulfonation of PS particles yields polymeric particles with a large range of electrical properties that are related to the degree of sulfonation (and water content) controlled by the reaction process (i.e., reaction time, temperature, or concentration of sulfuric acid).…”
Section: Introductionmentioning
confidence: 99%