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Effect of surface amphiphilic property of azobenzene self-assembled electrode materials on properties of supercapacitors

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Abstract

In this report, novel azobenzene self-assembled complexes (azo-Cn, n = 8, 12, 16) were used as an electrode material for pseudo-capacitors. The as-prepared azo-Cn exhibited a good reversible redox process and possessed a specific capacitance as high as 221.0 F g−1 at 10 mV s−1. However, with the value n increased from 8 to 16, the specific capacitances of azo-Cn electrode materials decreased. In order to study the reasons, the effect of surface amphiphilic property of azobenzene self-assembled electrode materials on the properties of supercapacitors was studied and the results showed that the capacitive behaviors of azo-Cn could be greatly improved by better surface hydrophilic properties and azo-C8 with good supercapacitive characteristics could be the potential ideal electrode materials for low-cost and high-efficiency electrochemical supercapacitors.

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Acknowledgments

We thank Qiu Yan (1941308558@qq.com) for her linguistic assistance during the preparation of this manuscript.

Funding

The work described in this paper was supported by the Technology Planning Project of Guangdong Province (No. 2016B090918006 and 2015B090927007), the Guangdong Innovation Team Project for Colleges and Universities (No. 2016KCXTD023).

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Authors and Affiliations

  1. School of Environment and Civil Engineering, School of Materials Science and Engineering, Dongguan University of Technology, Guangdong, 523808, People’s Republic of China

    Xueyi Chang, Yongfu Qiu, Zhiyu Cheng & Lifeng Cui

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  1. Xueyi Chang
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  2. Yongfu Qiu
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  4. Lifeng Cui
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Correspondence to Yongfu Qiu or Zhiyu Cheng.

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Chang, X., Qiu, Y., Cheng, Z. et al. Effect of surface amphiphilic property of azobenzene self-assembled electrode materials on properties of supercapacitors. Ionics 26, 523–529 (2020). https://doi.org/10.1007/s11581-019-03252-6

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  • DOI: https://doi.org/10.1007/s11581-019-03252-6

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