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Enhancing electrochemical performance of TiO2 microsphere electrodes for supercapacitors via a simple heat treatment

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Abstract

The wettability of the electrode is critical to the performance of supercapacitor. In this work, a simple heat treatment strategy was applied to modify the electrochemical performance of TiO2 microsphere electrode. This heat treatment increases a large number of micropores and moderate mesopores while reducing the hydrophobic groups on the surface of TiO2, thereby improving the electrochemical performance of the TiO2 microsphere electrode. After heat treatment, the areal capacitance of the TiO2 microsphere electrode increased from 4.95 to 58.58 mF/cm2 at a current density of 1 mA/cm2, and the capacitance retention rate still retained 96.9% after 10,000 cycles. This simple heat treatment modification method provides considerable potential for the application of supercapacitors in the field of energy storage.

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Data availability

The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. College of Electrical Engineering & New Energy, Hubei Provincial Engineering Technology Research Center for Power Transmission Line China Three Gorges University, Yichang, 443002, Hubei, China

    You Wu, Peng Xiang, Lihua Jiang, Ting Xiao & Xinyu Tan

  2. College of Materials and Chemical Engineering, China Three Gorges University, Yichang, 443002, Hubei, China

    Xinyu Tan

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  1. You Wu
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  2. Peng Xiang
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  3. Lihua Jiang
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  4. Ting Xiao
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  5. Xinyu Tan
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by [YW], [PX], [LHJ], [TX], and [XYT]. The first draft of the manuscript was written by [YW] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Peng Xiang or Xinyu Tan.

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Wu, Y., Xiang, P., Jiang, L. et al. Enhancing electrochemical performance of TiO2 microsphere electrodes for supercapacitors via a simple heat treatment. J Mater Sci: Mater Electron 34, 153 (2023). https://doi.org/10.1007/s10854-022-09595-7

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  • DOI: https://doi.org/10.1007/s10854-022-09595-7

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