Nano Archive

Preparation of polyaniline nanofibers and nanoparticles via simultaneous doping and electro-deposition

Roy, Subhasis and Kargupta, Kajari and Chakraborty, Saikat and Ganguly, Saibal (2008) Preparation of polyaniline nanofibers and nanoparticles via simultaneous doping and electro-deposition. Materials Letters, 62 (16). 2535 - 2538.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

We present a new post-synthetic method for producing different nano-structures of Polyaniline (PANI), especially nano-fibers and nano-particles of varying doping (oxidation) states, by simultaneous doping and electro-deposition from electrolyte solutions of undoped PANI (Emeraldine bases) and p-toluenesulphonic acid using constant applied voltage and varying deposition time. High Resolution Transmission Electron Microscopy analysis reveals that during the initial doping-dominated stage continuous connected conductive PANI Emeraldine salt nano-fibers of diameter less than 50 nm are formed while in the later deposition-dominated stage, 30-50 nm sized isolated dispersed nano-particles of non conductive Leuco-Emeraldine are formed.

Item Type:Article
Uncontrolled Keywords:Polymer; Nanomaterials; Nanofibers; Nanoparticle; Doping; Electro-deposition
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:6647
Deposited By:SPI
Deposited On:10 Feb 2010 09:42
Last Modified:10 Feb 2010 09:42

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