Work

Mo-Dopant-Enhanced Energy Storage Performance of VS2 Microflowers as Electrode Materials for Supercapacitors

Year: 2025

Type: article

Abstract: It is found that Mo doping can enhance the supercapacitor performance of VS2 microflowers. The X-ray diffraction combined with energy dispersive X-ray, X-ray photoelectron spectroscopy, and Raman spectra results verify the successful doping of Mo atoms into the VS2 matrix. As the electrode material of supercapacitors, the Mo-doped VS2 performs better electrochemical performance than pristine VS2, achieving the specific capacitance of 170 F g−1 at 0.5 A g−1 and 389.5 F g−1 at 5 mV s−1. Furthermore, the symmetric supercapacitor based on the Mo-doped VS2 exhibits good stability and ideal rate capability. The enhanced capability is presumably ascribed to the more accessible active sites and faster electrons/ions diffusion kinetics, which are caused by the increased specific surface area, expanded interlayer spacing, and improved conductivity after Mo doping. This strategy can also be extended to strengthen the capacitive properties of other transition metal dichalcogenides for advanced energy storage devices.

Source: Inorganics

DOI: 10.3390/inorganics13060199

Authors: Jingwei Wang, Xuejun Zheng, Long Xie, Zhenhua Xiang, Wenyuan He

Institutions: Xiangtan University, Guangdong University of Technology, Foshan University

Language: English

Topic: Supercapacitor Materials and Fabrication

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,654