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Artigo Revisado por pares
BIBTEX RIS

Assembly of Prussian blue onto SiO2 nanoparticles and carbon nanotubes by electrostatic interaction

2006; Elsevier BV; Volume: 278; Issue: 1-3 Linguagem: Inglês

10.1016/j.colsurfa.2005.12.008

ISSN

1873-4359

Autores

Lei Qian, Xiurong Yang,

Tópico(s)

Electrochemical sensors and biosensors

Resumo

Prussian blue (PB) was modified onto surface of SiO2 nanoparticles and multiwall carbon nanotubes (MWNTs) by electrostatic assembled method. SiO2 nanoparticles and MWNTs firstly modified by polyelectrolyte exhibited positive charges and negative charged PB could be assembled onto them. UV–vs spectroscopy, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), field-emitted scanning electron microscopy (FE-SEM) and electrochemical methods were used to characterize these composite nanomaterials. TEM and FE-SEM images showed that PB was easily assembled onto polyelectrolyte modified SiO2 nanoparticles and MWNTs. Moreover, PB on the surface of nanomaterials was stable and still kept its intrinsic electrochemical properties and high electrocatalytic activity towards hydrogen peroxide.

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