Molybdenum Disulfide Based Nanomaterials for Rechargeable Batteries

Abstract

The rapid development of electrochemical energy storage systems requires new electrode materials with high performance. As at wo-dimensional material, molybdenum disulfide (MoS 2 )h as attracted increasing interest in energy storage applications due to its layered structure, tunable physical and chemical properties,a nd high capacity.I nt his review,t he atomic structuresa nd properties of different phases of MoS 2 are first introduced. Then, typical synthetic methods for MoS 2 and MoS 2 -basedc omposites are presented. Furthermore, the recent progress in the design of diverse MoS 2 -based micro/nanostructures for rechargeable batteries, including lithium-ion, lithium-sulfur,s odium-ion, potassiumion, and multivalent-ion batteries, is overviewed. Additionally,t he roles of advanced in situ/operando techniques and theoretical calculations in elucidating fundamentali nsights into the structural and electrochemical processes taking place in these materials during battery operation are illustrated. Finally,aperspective is given on how the properties of MoS 2 -based electrode materials are further improved and how they can find widespread application in the next-generation electrochemical energy-storage systems.[a] J.Apart from designing different nanostructured MoS 2 -based materials for battery applications, the fundamental understanding of reaction mechanisms, structuralp roperties, and phase transitions is vital to the development of improved electrode materials. As eries of in situ techniques, including XRD, [85] X-ray absorptions pectroscopy (XAS), [86] Raman, [66,75] andT EM, [85a, 87] have been adopted to provide insights into the electrochemical mechanismsr elated to MoS 2 -based electrodes, see Table 4.

Bottom‐Up Synthesis of MoS2/CNTs Hollow Polyhedron with 1T/2H Hybrid Phase for Superior Potassium‐Ion Storage

“…[6,7] 2D layered materials, molybdenum disulfide (MoS 2 ) is one of the most promising candidates for PIBs due to its graphene-like layered structure, low cost, wide interlayer spacing (≈6.15 Å for 2H phase), and high theoretical capacity. [8][9][10][11][12] However, for commercial MoS 2 powder, the reversible capacity is relatively low (≈65 mAh g −1 at 20 mA g −1 ). [6] According to the study of Wu and co-workers during the K + intercalation process, a hexagonal K 0.4 MoS 2 compound was formed.…”

Deep Eutectic Solvents for Boosting Electrochemical Energy Storage and Conversion: A Review and Perspective

“…2D nanomaterials have shown great prospects in various research fields including energy storage, catalysis, sensing, electronics, etc. [122][123][124] DESs are known as green solvents having the advantages of nonflammability, high polarity, negligible vapor pressure, and easy recycling, and thus have been used as exfoliation agent to prepare single-or few-layer 2D materials. Abdelkader et al reported the use of ChCl/urea system to mechanochemically exfoliate 2D crystals, including graphite, boron nitride, and transition metal dichalcogenides.…”

Recent Advance and Modification Strategies of Transition Metal Dichalcogenides (TMDs) in Aqueous Zinc Ion Batteries

“…These layered structures facilitate the transport of various carriers and can also adapt to the volume change during ion insertion. Because of their different chemical composition and unique crystal structure, as well as the fact that the d-orbitals can be filled with different elements, TMDs can be used as functional materials for electronic insulation, semiconductors, and superconductivity [ 27 ].…”