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Issue 5, 2012
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Enhanced electrochemical performance of polyaniline/sulfonated polyhedral oligosilsesquioxane nanocomposites with porous and ordered hierarchical nanostructure

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Abstract

In this work, polyhedral oligosilsesquioxane (POSS) was functionalized by direct sulfonation, and the porous and ordered hierarchical nanostructure of polyaniline/sulfonated polyhedral oligosilsesquioxane (PANI/SOPS) was subsequently fabricated by in situ polymerization. The morphologies of the PANI/SOPS nanocomposites can be controlled by adjusting the concentration of SOPS. The measurement of X-ray diffraction pattern and ultraviolet-visible spectra demonstrates the molecular level dispersion of SPOS in the PANI matrix. Synergetic interaction between PANI and SOPS significantly improves the porosity and the stability of the electrode, yielding excellent electrochemical properties. Compared to pure PANI, the PANI/SOPS electrode exhibits a higher specific capacitance of 1810 F g−1, faster oxidation/reduction at high current changes and better cyclic stability, which is attributed to the nano-architecture of the electrode materials and the support of the SOPS nanoparticles. This result suggests that the construction of the porous and ordered hierarchical nanostructure is a novel and effective way for improving the electrochemical properties of conducting polymers.

Graphical abstract: Enhanced electrochemical performance of polyaniline/sulfonated polyhedral oligosilsesquioxane nanocomposites with porous and ordered hierarchical nanostructure

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Publication details

The article was received on 17 Jul 2011, accepted on 02 Nov 2011 and first published on 06 Dec 2011


Article type: Paper
DOI: 10.1039/C1JM13359D
Citation: J. Mater. Chem., 2012,22, 1884-1892

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    Enhanced electrochemical performance of polyaniline/sulfonated polyhedral oligosilsesquioxane nanocomposites with porous and ordered hierarchical nanostructure

    Y. Li, Q. Zhang, X. Zhao, P. Yu, L. Wu and D. Chen, J. Mater. Chem., 2012, 22, 1884
    DOI: 10.1039/C1JM13359D

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