Preparation, characterization and electrochemistry of Layer-by-Layer films of silver nanoparticles and silsesquioxane polymer
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- 作者：Rafaela D. de Oliveira ; Giselle N. Calaç ; a ; Cleverson S. Santos ; Sergio T. Fujiwara ; Christiana A. Pessô ; a ; christiana.pessoa@pq.cnpq.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Silver nanoparticles ; Layer-by-Layer films ; 3-n-propylpyridinium-silsesquioxane ; Iodine ; Electrochemical sensors
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2016
- 出版时间：20 November 2016
- 年：2016
- 卷：509
- 期：Complete
- 页码：638-647
- 全文大小：1763 K
文摘
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TEM images showed that AgNPs are formed inside of starch chains (≈5 nm) and outside of starch chains (≈80 nm).
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Starch stabilized AgNPs and 3-n-propylpyridinium silsesquioxane chloride (SiPy+Cl−) formed stable LbL films.
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AFM studies suggest that the LbL films formed are homogeneous.
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LbL film showed higher electrocatalytic activity for triiodide due to the synergistic effect between the film components.