Document Type : Research Article
Authors
1
Department of Applied Chemistry, Faculty of Chemistry, University of Kashan, Kashan 87317-53153, Iran
2
Department of Applied Chemistry, Faculty of Chemistry, University of Kashan, Kashan 87317-53153, Iran.
3
Research Laboratory of Real Samples Analysis, Faculty of Chemistry, Iran University of Science and Technology, Tehran 1684613114, Iran.
10.22091/jaem.2026.15442.1043
Abstract
Zinc-ion batteries (ZIBs) have garnered significant research interest due to their inherent safety, cost-effectiveness, and the abundance of raw materials. Among the promising cathode materials, molybdenum disulfide (MoS2), with its distinctive layered structure, has demonstrated substantial potential for Zn2+ ion storage. This study introduces a simple and effective method to engineer the MoS2 layered structure. Through glucose-assisted chemical modification, the structural stability and interlayer ordering of MoS2 are enhanced while fully preserving its original crystalline phase. This modification leads to a notable improvement in electrochemical performance, particularly when paired with an optimized electrolyte. The study underscores the critical role of electrolyte selection in determining battery stability and lifespan. We investigated the performance of a ZIB using a glucose-modified MoS2 cathode in two aqueous electrolytes: 1 M ZnSO4 and 1 M Zn (CF3SO3)2. Comprehensive structural and electrochemical analyses, including XRD, SEM, IR, EDX, CV, EIS, and charge/discharge cycling, were performed. The results show that the Gl-m-MoS2 using the Zn(CF3SO3)2 electrolyte exhibits superior cycling stability and, by the 50th charge/discharge cycle, reaches a capacity of 114.68 mAh g-1 at a current density of 0.1 A g-1, corresponding to a 29.4% decrease.
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