Carbon Dot Regulating NiSe/MnO 2 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 to improve the electrochemical performance in supercapacitors. After the dendritic NiSe microcr...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2024-12, Vol.16 (49), p.68157
Main Authors: Xie, Xiaotian, Xu, Yi, Liu, Jie, Wang, Dongtian, Lv, Tingting, Yuan, Fanshu, Zhang, Qianli
Format: Article
Language:English
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Summary: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 to improve the electrochemical performance in supercapacitors. After the dendritic NiSe microcrystals are synthesized via a microwave method, NF/NiSe/MnO -LCDs are prepared by another microwave process to form a composite mixture of LCDs, MnO , and NF/NiSe. At 1 A g , NF/NiSe/MnO -LCDs possess a specific capacitance of 2268 F g and superb lifespans (84.43%, 3000 cycles) for their enhanced ion transport and rapid electron transfer. In addition, the NF/NiSe/MnO -LCDs//AC ASC showed an energy density of 51.62 Wh kg at 800 W kg and extraordinary endurance with 88.46% retention (7000 loops). The NF/NiSe/MnO -LCDs offer ideas to improve the capacity retention and storage capacity of electrodes for supercapacitors.
ISSN:1944-8252