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Citation: ZHANG Xin, CHU Chengcan, HUANG Kaihua, SU Zhaohui. Preparation of Au@Pt Core-Shell Nanoparticles Using Polyelectrolyte Multilayers as Nanoreactors[J]. Chinese Journal of Applied Chemistry, ;2012, 29(12): 1433-1437. doi: 10.3724/SP.J.1095.2012.20426 shu

Preparation of Au@Pt Core-Shell Nanoparticles Using Polyelectrolyte Multilayers as Nanoreactors

1.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Corresponding author: SU Zhaohui,
Received Date: 26 September 2012
Available Online: 16 October 2012
Fund Project: 国家自然科学基金资助项目(21174145) (21174145)

Polyelectrolyte multilayers were assembled via the layer-by-layer technique from poly(diallyldimethylammonium chloride)(PDDA) and poly(styrene sulfonate)(PSS).AuCl₄^- and PtCl₆^2-,precursor ions for Au and Pt,respectively,were exchanged into the multilayers and then reduced in situ via a sequential anion exchange/reduction process to produce Au@Pt bimetallic nanoparticles in the multilayer films.The core-shell structure of the bimetallic nanoparticles produced was confirmed using ultraviolet-visible absorption spectroscopy(UV-Vis),transmission electron microscopy(TEM) and energy dispersive X-ray spectroscopy(EDX).These core-shell nanoparticles may find application in the fields of electrocatalysis and fuel cells.
- polyelectrolyte multilayer,
- bimetallic nanoparticles,
- core-shell
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