Carbon Dot Regulating NiSe/MnO<sub>2</sub> Heterostructures for High-Performance Supercapacitors
Structural regulation is an effective strategy for enhancing an electrode's energy storage performance. Herein, lignin-derived carbon dots (LCDs) are explored for the structural tailoring of NiSe/MnO<sub>2</sub> to improve the electrochemical performance in supercapacitors. After the dendritic NiSe microcrystals are synthesized via a microwave method, NF/NiSe/MnO<sub>2</sub>-LCDs are prepared by another microwave process to form a composite mixture of LCDs, MnO<sub>2</sub>, and NF/NiSe. At 1 A g<sup>-1</sup>, NF/NiSe/MnO<sub>2</sub>-LCDs possess a specific capacitance of 2268 F g<sup>-1</sup> and superb lifespans (84.43%, 3000 cycles) for their enhanced ion transport and rapid electron transfer. In addition, the NF/NiSe/MnO<sub>2</sub>-LCDs//AC ASC showed an energy density of 51.62 Wh kg<sup>-1</sup> at 800 W kg<sup>-</sup><sup>1</sup> and extraordinary endurance with 88.46% retention (7000 loops). The NF/NiSe/MnO<sub>2</sub>-LCDs offer ideas to improve the capacity retention and storage capacity of electrodes for supercapacitors.
Authors
- Fanshu Yuan (ORCID: https://orcid.org/0000-0002-4848-6033)
- Jie Liu (ORCID: https://orcid.org/0000-0002-0014-5635)
- Yi Xu (ORCID: https://orcid.org/0000-0001-8894-525X)
- Tingting Lv (ORCID: https://orcid.org/0000-0002-0902-1284)
- Dongtian Wang
- Qianli Zhang (ORCID: https://orcid.org/0000-0001-8260-1165)
- Xiaotian Xie
Institutions
- Suzhou University of Science and Technology (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2024-12-03
- DOI
- https://doi.org/10.1021/acsami.4c13282
- Citations
- 11
- Primary Topic
- Supercapacitor Materials and Fabrication
- Type
- article
- Field-Weighted Citation Impact
- 1.30
Funders
- National Natural Science Foundation of China
- Jiangsu Provincial Department of Education