| 以聚电解质多层膜为纳米反应器制备Au@Pt核壳纳米粒子 |
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| 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 |
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| 作者姓名： | 张信 储诚灿 黄凯华 苏朝晖 |
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| 作者单位： | (中国科学院长春应用化学研究所高分子物理与化学国家重点实验室 长春 130022) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 以聚二烯丙基二甲基氯化铵和聚苯乙烯磺酸钠为构筑单元，通过静电层层自组装制备了多层膜，利用薄膜中存在的抗衡阴离子，选择AuCl-4和PtCl2-6作为Au和Pt的前驱体，通过连续的阴离子交换/还原，原位制备了Au-Pt双金属纳米粒子。 紫外-可见分光光度法、透射电子显微镜和能量色散X射线能谱数据表明，在聚电解质多层薄膜中成功地制备了具有核壳结构的Au@Pt双金属纳米粒子。 这种纳米粒子在电化学催化、燃料电池方面具有潜在的应用价值。
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| 关 键 词： | 聚电解质多层膜 双金属纳米粒子 核壳 |
| 收稿时间： | 2012-09-26 |
| 修稿时间： | 2012-10-15 |
Preparation of Au@Pt Core-Shell Nanoparticles Using Polyelectrolyte Multilayers as Nanoreactors |
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| 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 |
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| Authors: | ZHANG Xin CHU Chengcan HUANG Kaihua SU Zhaohui |
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| Affiliation: | (State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of ;Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China) |
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| Abstract: | Polyelectrolyte multilayers were assembled via the layer-by-layer technique from poly(diallyldimethylammonium chloride)(PDDA) and poly(styrene sulfonate)(PSS). AuCl-4 and PtCl2-6, 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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| Keywords: | polyelectrolyte multilayer bimetallic nanoparticles core-shell |
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