Advances in 2D Molybdenum Disulfide‐Based Functional Materials for Supercapacitor Applications

Abstract

Energy storage has become the most crucial topic of research in the 21 st century owing to the growing demand for energy for various modern-day requirements. Supercapacitors (SCs) are energy storage devices that can deliver power for a wide range of electronic gadgets, electric/hybrid vehicles and sophisticated machines used in space and the military. Electrode materials play a vital role in determining the electrochemical performance and stability of these energy devices. It is therefore essential to design efficient and long-lasting materials that are solid, lightweight and flexible to suit various applications. The excellent chemical and physical properties of MoS 2 have made it one of the most widely considered two-dimensional nanomaterials in the past few years. Through this review, we mainly highlight the synthesis, properties, and electrochemical performance of MoS 2 and its composites-based functional materials. The potential uses of MoS 2 in various fields imply that this material still offers many possibilities for exploration and development.

Activating biomass carbon with metallurgical slag by pyrolysis in molten salt for high-performance supercapacitors

“…The supercapacitor is one of the bright electrochemical energy-storage devices, 8–10 promising advantages in safety and long cycling stability over batteries. Specifically, supercapacitors present a dendrite-free and negligible heat-generation working mode and are therefore almost free of safety problems.…”

Carbon framework modification; an interesting strategy to improve the energy storage and dye adsorption

“…These values are similar to other EDLC/supercapacitor cells reported in the literature. [33][34][35][36][37] Fig. 7a shows the specific capacitance of cell A during B10 000 charge-discharge cycles recorded at a current density of 1.6 mA cm À2 at 1.0 V. During the first 100 cycles, the capacitance was unstable, possibly due to irreversible electrochemical reactions at the electrode-electrolyte interface.…”

Heteroatom-Doped Molybdenum Disulfide Nanomaterials for Gas Sensors, Alkali Metal-Ion Batteries and Supercapacitors

“…Charge storage in MoS 2 occurs due to the capacitance of the electric double-layer and the pseudocapacitive contribution [224,225]. Reviews on approaches to the synthesis of MoS 2 nanomaterials, including their compositions with carbon derivatives, conducting polymers, metal sulfides, etc., for use in supercapacitors are given in [226,227]. The main tage of MoS 2 is its low electrical conductivity, which can be enhanced by combining the thermodynamically stable 2H phase and the metallic 1T phase [223].…”