引用本文:
张信, 储诚灿, 黄凯华, 苏朝晖. 以聚电解质多层膜为纳米反应器制备Au@Pt核壳纳米粒子[J]. 应用化学,
2012, 29(12): 1433-1437.
doi:
10.3724/SP.J.1095.2012.20426
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
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
以聚电解质多层膜为纳米反应器制备Au@Pt核壳纳米粒子
English
Preparation of Au@Pt Core-Shell Nanoparticles Using Polyelectrolyte Multilayers as Nanoreactors
Abstract:
Polyelectrolyte multilayers were assembled via the layer-by-layer technique from poly(diallyldimethylammonium chloride)(PDDA) and poly(styrene sulfonate)(PSS).AuCl4- and PtCl62-,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.
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Key words:
- polyelectrolyte multilayer
- / bimetallic nanoparticles
- / core-shell
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