<i>In situ</i> synthesis of a Bi<sub>2</sub>O<sub>3</sub>/Bi<sub>2</sub>S<sub>3</sub> composite heterojunction for the electrochemical characterization of supercapacitors
This study employs a two-step hydrothermal method to <i>in situ</i> introduce sulfur into a Bi<sub>2</sub>O<sub>3</sub> matrix. The synthesized material displays a specific capacitance of 305.57 F g<sup>-1</sup> (2 A g<sup>-1</sup>) and achieves a cycling stability of 94.12% (10 A g<sup>-1</sup>), evidencing the enhancement of both capacitance and cycling stability attributed to the heterojunction. The existence of a built-in electric field was confirmed <i>via</i> theoretical calculations, highlighting the interactions between the electrode materials and ions. In addition, devices were constructed to demonstrate the practicality in real-world applications. This study proposes an effective methodology for the <i>in situ</i> synthesis of heterojunctions, offering fresh perspectives on the development of electrode materials for supercapacitors.
Authors
- Yulong Deng
- Jinming Cai (ORCID: https://orcid.org/0000-0003-0869-1515)
- Chunming Deng (ORCID: https://orcid.org/0000-0003-4878-6180)
- Xiaoming Cai
- Jinhua Zheng
- Honglin Tan (ORCID: https://orcid.org/0000-0002-2804-2515)
- Wenting Chen
Institutions
- Kunming University of Science and Technology (CN)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt00026b
- Citations
- 2
- Primary Topic
- Supercapacitor Materials and Fabrication
- Type
- article
- Field-Weighted Citation Impact
- 0.85
Funders
- National Natural Science Foundation of China
- Yunnan Provincial Department of Education