PS Microspheres Coated by AuNPs via Thermodynamic Driving Heterocoagulation and Their High Catalytic Activity. Issue 6 (28th January 2014)

• Record Type: Journal Article
• Authors: Pan, Yunfei; Wang, Jianing; Wang, Yong; Wang, Zhaoqun
• Is Part Of: Macromolecular rapid communications. Volume 35:Issue 6(2014:Mar.)
• Page Start: 635
• Page End: 641
• Publication Date: 2014-01-28
• Subjects: Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201300794
• Languages: English
• ISSNs: 1022-1336

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>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 microscopy, and thermogravimetric analysis. More importantly, the PS/AuNPs composite particles hold higher catalytic efficiency and better repeatability than the previously reported results, which are confirmed in two oxidation–reduction reactions of 2‐nitroaniline/NaBH₄ and rhodamine B/NaBH₄. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg4svk6k7m" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>