Issue 13, 2009
From the journal:

Journal of Materials Chemistry

Layer-by-layer assembly of chitosan/tungstosilicate acid-Ag nanocomplex with electrocatalytic properties†

L. Zhang,ab   Y. H. Shen,*ac   A. J. Xie,ac   S. K. Lia  and  Y. M. Lia  

* Corresponding authors

a School of Chemistry and Chemical Engineering, Anhui University, Hefei, P. R. China
E-mail: s_yuhua@163.com
Fax: +86-551-5108702
Tel: +86-551-5108090

b Department of Chemistry-Biology, Suzhou University, Suzhou, P. R. China

c State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, P. R. China

Abstract

Tungstosilicate acid (TSA)-Ag nanocomplex were synthesized based on the reduction of silver nitrate by UV-irradiated tungstosilicate acid solution. The nanocomposite films consisting of TSA-Ag composite nanoparticles and chitosan (CTS) were fabricated by layer-by-layer self-assembly technique. The coverage degree of TSA-Ag composite nanoparticles on the surface of the film increased with the number of the bilayers. TSA-Ag composite nanoparticles grew in a direction normal to the surface of the film. Large overlap existed between adjacent layers of TSA-Ag and CTS. The composite thin film exhibited linear, uniform and regular layer-by-layer growth. The multiplayer films exhibited good electrocatalytic activity for dioxygen reduction.

Graphical abstract: Layer-by-layer assembly of chitosan/tungstosilicate acid-Ag nanocomplex with electrocatalytic properties

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Article information

DOI
https://doi.org/10.1039/B817071A
Article type
Paper
Submitted
30 Sep 2008
Accepted
19 Dec 2008
First published
09 Feb 2009

J. Mater. Chem., 2009,19, 1884-1893

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Layer-by-layer assembly of chitosan/tungstosilicate acid-Ag nanocomplex with electrocatalytic properties

L. Zhang, Y. H. Shen, A. J. Xie, S. K. Li and Y. M. Li, J. Mater. Chem., 2009, 19, 1884 DOI: 10.1039/B817071A

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