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

Content Provider	Royal Society of Chemistry (RSC)
Author	Li, Yingzhi Zhang, Qinghua Yu, Pingping Zhao, Xin Wu, Lihao Chen, Dajun
Copyright Year	2012
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.
Starting Page	1884
Ending Page	1892
Page Count	9
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	22
Issue Number	5
Journal	Journal of Materials Chemistry
DOI	10.1039/c1jm13359d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	SPOS PANI Sulfonic acid Nanostructure Polyaniline Polymerization X-ray crystallography Statistical dispersion Composite material Porosity Electrode Electrochemistry Capacitance
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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