Microwave-Assisted Rapid Synthesis of Cu2S/CoO Heterostructured Composites for High-Performance Asymmetric Supercapacitors
- 1School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
Abstract
Transition metal sulfides and oxides are attractive for supercapacitor electrodes due to rich redox sites and high theoretical capacitances. Yet single-phase materials suffer from poor structural stability and slow charge transfer, restricting practical applications. Herein, a facile microwave route is developed to prepare Cu2S/CoO composite electrodes. Experimental results demonstrate that the heterogeneous interface between Cu2S and CoO induces a prominent synergistic effect, which greatly boosts the redox activity of the electrode. The optimized Cu2S/CoO composite exhibits a specific capacitance of 2898 F g−1 at 1 A g−1, and maintains 84.1% of its initial capacitance after 30,000 continuous cycles, revealing remarkable cycling durability. The asymmetric supercapacitor fabricated with the Cu2S/CoO negative electrode delivers an energy density of 186.45 Wh kg−1 at a power density of 800.02 W kg−1, and this performance outperforms most recently reported analogous electrode systems. This research offers a practical route for the fast fabrication of high-performance bimetallic composite electrodes through microwave treatment, and supplies useful references for the structural engineering and performance optimization of advanced electrochemical energy storage materials.
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BibTeX
@article{zhao2026microwaveassisted,
title = {{Microwave-Assisted Rapid Synthesis of Cu2S/CoO Heterostructured Composites for High-Performance Asymmetric Supercapacitors}},
author = {Yunxia Zhao and Yu Yang and Qianwen Duan and Shuxin Gong and Bowen Du and Zhen Lu and Feng Feng},
journal = {Molecules},
year = {2026},
month = oct,
doi = {10.3390/molecules31203715},
url = {https://www.mdpi.com/1420-3049/31/20/3715},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Microwave-Assisted Rapid Synthesis of Cu2S/CoO Heterostructured Composites for High-Performance Asymmetric Supercapacitors
AU - Yunxia Zhao
AU - Yu Yang
AU - Qianwen Duan
AU - Shuxin Gong
AU - Bowen Du
AU - Zhen Lu
AU - Feng Feng
PY - 2026
DA - 2026/10/16
JO - Molecules
DO - 10.3390/molecules31203715
UR - https://www.mdpi.com/1420-3049/31/20/3715
AB - Transition metal sulfides and oxides are attractive for supercapacitor electrodes due to rich redox sites and high theoretical capacitances. Yet single-phase materials suffer from poor structural stability and slow charge transfer, restricting practical applications. Herein, a facile microwave route is developed to prepare Cu2S/CoO composite electrodes. Experimental results demonstrate that the heterogeneous interface between Cu2S and CoO induces a prominent synergistic effect, which greatly boosts the redox activity of the electrode. The optimized Cu2S/CoO composite exhibits a specific capacitance of 2898 F g−1 at 1 A g−1, and maintains 84.1% of its initial capacitance after 30,000 continuous cycles, revealing remarkable cycling durability. The asymmetric supercapacitor fabricated with the Cu2S/CoO negative electrode delivers an energy density of 186.45 Wh kg−1 at a power density of 800.02 W kg−1, and this performance outperforms most recently reported analogous electrode systems. This research offers a practical route for the fast fabrication of high-performance bimetallic composite electrodes through microwave treatment, and supplies useful references for the structural engineering and performance optimization of advanced electrochemical energy storage materials.
SN - 1420-3049
ER -