https://doi.org/10.1140/epjp/s13360-025-06331-y
Regular Article
Incorporation of TiO2 nanoparticles in MoS2 nanosheets for electrochemical energy storage applications
1
Department of Physics, School of Basic Sciences, Central University of Punjab, 151401, Bathinda, India
2
Department of physics, School of Material Sciences and Nanotechnology, Baba Ghulam Shah Badshah University (BGSBU), 185234, Rajouri, Jammu and Kashmir, India
3
Post-Graduate and Research Department of Chemistry, The New College (Autonomous), University of Madras, 600014, Chennai, India
4
Department of Chemistry, RTM Nagpur University, 440033, Nagpur, India
5
Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
Received:
2
January
2025
Accepted:
15
April
2025
Published online:
12
May
2025
Recently, transition metal dichalcogenides (TMDCs) have gained attention as promising electrode materials for energy storage applications due to their exceptional physicochemical properties. Two-dimensional (2D) layered materials have demonstrated significant potential for electrochemical energy storage. Nevertheless, their performance is often hindered by slow kinetics and inadequate cycling stability. Modifying the interfaces of these 2D materials offers a viable strategy to increase active sites, enhance electronic conductivity, and improve structural stability, potentially addressing key challenges in the development of high-performance energy storage devices. In this study, we developed a rapid one-pot synthesis method for the MoS2/TiO2 binary composite. The resulting TiO2 nanoparticles are integrated within the two-dimensional structure of agglomerated and wrinkled MoS2 nanosheets. This arrangement enhances electrical properties and increases the surface area, making them suitable for electrodes in supercapacitors, facilitating electric double-layer and pseudocapacitance behaviors. The synthesized materials were utilized to construct both three and two-electrode configurations. In a three-electrode setup, the MoS2 and MoS2/TiO2 composites exhibited specific capacitances of 188 F/g and 426 F/g at a scan rate of 10 mV/s, respectively. Furthermore, they demonstrated impressive energy and power densities, with MoS2 achieving 21.81 Wh/kg at 399 W/kg, while the composite reached 39.16 Wh/kg at 499.46 W/kg. Additionally, we developed quasi-solid-state symmetric and asymmetric supercapacitors, which achieved specific capacitances of 328 F/g and 167 F/g at a scan rate of 10 mV/s, respectively. The specific energy and power densities were measured at 19.24 Wh/kg at 1058.901 W/kg and 44.53 Wh/kg at 1279.9 W/kg, respectively. Moreover, the capacitance retention of symmetric supercapacitor delivers 85% after 5000 charge–discharge cycles at a current density of 10 A/g. This synergistic approach, combining MoS2 and TiO2, shows significant potential for the rational design of high-performance electrode materials in energy storage applications.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjp/s13360-025-06331-y.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
