Abstract
Nickel foam (NF) has high porosity, excellent conductivity and good flexibility, making it one of the ideal electrode materials. However, the large number of pores in the NF skeleton cannot be effectively utilized, thus limiting its specific capacitance as a self-supporting electrode material. Herein, a PEDOT/ZnO composite electrode material was prepared on Nickel foam by a two-step electrodeposition method. The electrodeposited ZnO nanoparticles are uniformly and densely coated on the pores of the NF, providing more active sites for electrochemical reactions. Owing to its high conductivity, reversible electrochemical redox behaviour and excellent cyclic stability, the electroactive PEDOT demonstrates an impressive pseudocapacitance property. As expected, the PEDOT/ZnO@NF composite electrode material exhibits a good mass specific capacitance of 139.28 F·g−1 at a current density of 1 A·g−1, and excellent cycling stability with no obvious decay after 100 cycles. In addition, the energy density and power density of the PEDOT/ZnO@NF composite electrode material are 37.9 Wh·Kg−1 and 699.5 W·Kg−1, respectively. This work demonstrates that the as-synthesized PEDOT/ZnO@NF could be a candidate for a flexible electrode material with high-performance supercapacitor applications.
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The datasets generated during and analysed during the current study are available from the corresponding author on reasonable request.
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Funding
The authors acknowledge the financial support of this research from Natural Science Foundation of Zhejiang Province (No. LY21E030010), Zhejiang **nmiao Talents Program (No. G22211010103), Key Research and Development Program of Zhejiang Province (No. 2021C01080) and Key R&D Project of Jiangsu Province (No. BE2022104).
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MS: study conceptualization, formal analysis and writing (original draft) the manuscript; ZG: data curation, formal analysis; JD: writing (review and editing) the manuscript; RG: study conceptualization; YG: analysis; XL: writing (original draft) the manuscript; CZ: writing (review and editing) and project administration.
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Shao, M., Ge, Z., Dong, J. et al. PEDOT/ZnO@Nickel foam as flexible electrode material for high-performance supercapacitor. J Mater Sci: Mater Electron 35, 180 (2024). https://doi.org/10.1007/s10854-024-11951-8
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DOI: https://doi.org/10.1007/s10854-024-11951-8