Preparation of Au/Ag Multilayers <italic style="font-style: italic">via</italic> Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity

Fei Zhao; Li Li; Yu-chuan Tian; Jian-jia Liu; Jian-jun Wang; Zhi-ming Zhou; Chun-xiang Lv; Xu-hong Guo

doi:10.1007/s10118-015-1700-5

Your Location：

Home >

Browse articles >

Preparation of Au/Ag Multilayers via Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity

PAPER | Updated：2021-06-21

- Preparation of Au/Ag Multilayers via Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity
- Chinese Journal of Polymer Science Vol. 33, Issue 10, Pages: 1421-1430(2015)
- Affiliations：
  
  a.School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
  b.National Engineering Laboratory for Carbon Fiber Technology, Taiyuan 030001, China
  c.Key Laboratory of Xinjiang Uygur Autonomous Region and Engineering Research Center of Xinjiang Bingtuan of Materials-oriented Chemical Engineering, Shihezi University, Shihezi 832000, China
- Author bio：
  
  **Li Li (李莉), E-mail: lili76131@ecust.edu.cn
  Chun-xiang Lv (吕春祥), E-mail: lucx@sxicc.ac.cn
- Funds：
- DOI：10.1007/s10118-015-1700-5
  CLC：
- Received：19 March 2015，
  
  Revised：2015-05-19，
  
  Accepted：24 May 2015，
  
  Published：2015-10
- Accepted：
Scan QR Code
Fei Zhao, Li Li, Yu-chuan Tian, et al. Preparation of Au/Ag Multilayers via Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity[J]. Chinese Journal of Polymer Science, 2015, 33(10): 1421-1430. DOI: 10.1007/s10118-015-1700-5.
DOI：

Fei Zhao, Li Li, Yu-chuan Tian, et al. Preparation of Au/Ag Multilayers via Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity[J]. Chinese Journal of Polymer Science, 2015, 33(10): 1421-1430. DOI: 10.1007/s10118-015-1700-5. DOI：

摘要

Abstract

Spherical polyelectrolyte brushes (SPBs) consisting of polystyrene (PS) core and poly(2-aminoethyl methacrylate hydrochloride) (PAEMH) shell were prepared by photo-emulsion polymerization. Au nanoparticles (Au-NPs) with controlled size and size distribution were synthesized

in situ

using SPBs as nanoreactors.

Via

layer-by-layer deposition technique on the surface of SPBs

nano-composite particles with Au/Ag-NPs bilayer and Au/Ag/Au-NPs trilayer were prepared. The structures of the as-prepared Au/Ag multilayer SPBs were characterized by UV-Vis spectroscopy

TEM

ICP-AES and DLS. The charge reversal of the nano-composite particles observed by zeta potential confirmed the success of layer-by-layer assembly. The Au/Ag-NPs bilayer nano-composite particles showed high catalytic efficiency with an apparent activation energy of about 41.2 kJ/mol in the reduction reaction of 4-nitrophenol to 4-aminophenol in the existence of sodium borohydride monitored. The catalytic activity of Au/Ag-NPs multilayer SPBs close to that of Au-NPs SPBs and much higher than that of Ag-NPs SPBs reveals its potential applications in cost-effective catalysts with high-performance.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Conformation and Counterion Distribution of Polyelectrolyte in Solution as Viewed from Dielectric Approach

Polymerization Kinetics of Propylene with the MgCl2-Supported Ziegler-Natta Catalysts—Active Centers with Different Tacticity and Fragmentation of the Catalyst

Topology-regulated Co-assembly of Single Chain Polymer Nanoparticles and Block Copolymers into Hierarchical Micelle@Vesicle Composite Structures

Enhanced Segment Mobility Promotes Stereocomplex Crystallization in Polymer Blends via Elevated Segmental Miscibility

Improvements of Hydrophobicity and Toughness of Epoxy Coatings Modified with Hydroxyl-terminated Fluororubber

Related Author

Kong-Shuang Zhao

Wei-Ping Zheng

Ya-Ping Ma

Da-Lin Du

Ai-Hua He

Hua-Feng Shao

Chen-Guang Liu

Related Institution

College of Chemistry, Beijing Normal University

Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics (Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology

⁰

Preparation of Au/Ag Multilayers via Layer-by-Layer Self-assembly in Spherical Polyelectrolyte Brushes and Their Catalytic Activity

DOI：10.1007/s10118-015-1700-5

摘要

Abstract

关键词

Keywords

references