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Network structure of SnO2 hollow spheres/PANI nanocomposites for electrochemical performance

Abstract

Homogeneous SnO2 hollow spheres have been synthesized through a hydrothermal method without template, followed by an in situ polymerization of PANI. The resulting SnO2 hollow spheres are uniformly deposited onto the surface or embedded into the PANI nanofibers to form SnO2-PANI network structure. As electrode materials, the SnO2-PANI composites exhibit greatly enhanced specific capacitance (477 F g-1 at a current density of 1 A g-1) and superior cycling performance (no capacitance loss after 3000 galvanostatic charge-discharge cycles). These intriguing features are attributed to the interaction between SnO2 hollow spheres and PANI network. On the one hand, the SnO2 spheres not only provide larger area for electrochemical reaction but also release the volume expansion during the charge-discharge process. On the other hand, the conducting PANI improve the electrical conductivity and maintain the mechanical integrity of composites as well.

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Publication details

The article was accepted on 10 Jan 2018 and first published on 11 Jan 2018


Article type: Paper
DOI: 10.1039/C8DT00056E
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Network structure of SnO2 hollow spheres/PANI nanocomposites for electrochemical performance

    Q. Wang, Q. Zong, C. Zhang, H. Yang and Q. Zhang, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00056E

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