Issue 28, 2012
From the journal:

RSC Advances

Layer-by-layer assembled sulfonated-graphene/polyaniline nanocomposite films: enhanced electrical and ionic conductivities, and electrochromic properties†

Jinlin Lu,‡a   Wanshuang Liu,‡a   Han Ling,a   Junhua Kong,a   Guoqiang Ding,a   Dan Zhoua  and  Xuehong Lu*a  

* Corresponding authors

a School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
E-mail: asxhlu@ntu.edu.sg

Abstract

In this article, we report the facile synthesis of sulfonic acid-grafted reduced graphene oxide (S-rGO) using a one-pot method under mild conditions, and layer-by-layer (LbL) assembly and electrochromic properties of S-rGO/polyaniline (S-rGO/PANI) nanocomposite thin films. It was found that the multilayer films of S-rGO/PANI exhibit much faster electrochromic switching kinetics than that of corresponding spin-coated PANI thin films. The enhancement can be attributed to the drastically increased electrical and ionic conductivities of the S-rGO/PANI films brought by the graphitic structure of the S-rGO sheets and the sulfonic acid groups attached to S-rGO, which lead to non-diffusion-controlled redox processes of PANI.

Graphical abstract: Layer-by-layer assembled sulfonated-graphene/polyaniline nanocomposite films: enhanced electrical and ionic conductivities, and electrochromic properties

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Article information

DOI
https://doi.org/10.1039/C2RA21579A
Article type
Paper
Submitted
26 Jul 2012
Accepted
07 Sep 2012
First published
11 Sep 2012

RSC Adv., 2012,2, 10537-10543

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Layer-by-layer assembled sulfonated-graphene/polyaniline nanocomposite films: enhanced electrical and ionic conductivities, and electrochromic properties

J. Lu, W. Liu, H. Ling, J. Kong, G. Ding, D. Zhou and X. Lu, RSC Adv., 2012, 2, 10537 DOI: 10.1039/C2RA21579A

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