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Volume 13
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10.3390/met13050981
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Article

Copper Oxide Nitrogen-Rich Porous Carbon Network Boosts High-Performance Supercapacitors

by
Dan Li
1,2,
Hanhao Liu
1,2,
Zijie Liu
1,2,
Que Huang
2,*,
Beihu Lu
3,*,
Yanzhong Wang
1,2,
Chao Wang
1,2 and
Li Guo
2
1
School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
2
Advanced Energy Materials and Systems Institute, North University of China, Taiyuan 030051, China
3
Wuhan Institute of Marine Electric Propulsion, Wuhan 430060, China
*
Authors to whom correspondence should be addressed.
Metals 2023, 13(5), 981; https://doi.org/10.3390/met13050981
Submission received: 30 March 2023 / Revised: 8 May 2023 / Accepted: 14 May 2023 / Published: 19 May 2023
(This article belongs to the Special Issue Manufacturing and Characterization of Metallic Electrode Materials)
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Abstract

Transition metal oxides with various valence states have high specific capacitance and have attracted much attention. However, the poor cycle stability caused by material agglomeration seriously limits the play of its high activity. Herein, we create a stress dispersion structure (CuxO composite porous carbon net) by in situ lyophilization and one-step carbonization, effectively anchoring highly reactive copper oxides and highly conductive carbon networks combined with high nitrogen doping of 10.7%, to investigate their electrochemical performance in supercapacitors. Specifically, the specific capacitance of CuxO@NPC can be as high as 392 F/g (0.5 A/g) in the three-electrode system with 6 mol/L KOH as electrolyte. When applied to the two-electrode system, the cycle stability of the whole device can reach 97% after 10,000 cycles.
Keywords: copper; carbon network; porous; supercapacitors copper; carbon network; porous; supercapacitors

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MDPI and ACS Style

Li, D.; Liu, H.; Liu, Z.; Huang, Q.; Lu, B.; Wang, Y.; Wang, C.; Guo, L. Copper Oxide Nitrogen-Rich Porous Carbon Network Boosts High-Performance Supercapacitors. Metals 2023, 13, 981. https://doi.org/10.3390/met13050981

AMA Style

Li D, Liu H, Liu Z, Huang Q, Lu B, Wang Y, Wang C, Guo L. Copper Oxide Nitrogen-Rich Porous Carbon Network Boosts High-Performance Supercapacitors. Metals. 2023; 13(5):981. https://doi.org/10.3390/met13050981

Chicago/Turabian Style

Li, Dan, Hanhao Liu, Zijie Liu, Que Huang, Beihu Lu, Yanzhong Wang, Chao Wang, and Li Guo. 2023. "Copper Oxide Nitrogen-Rich Porous Carbon Network Boosts High-Performance Supercapacitors" Metals 13, no. 5: 981. https://doi.org/10.3390/met13050981

APA Style

Li, D., Liu, H., Liu, Z., Huang, Q., Lu, B., Wang, Y., Wang, C., & Guo, L. (2023). Copper Oxide Nitrogen-Rich Porous Carbon Network Boosts High-Performance Supercapacitors. Metals, 13(5), 981. https://doi.org/10.3390/met13050981

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