Molybdenum sulfide‐based supercapacitors: From synthetic, bibliometric, and qualitative perspectives

Abstract

Molybdenum sulfide (MoS 2 ) is one of the active materials used in the fabrication of two-dimensional supercapacitors devices and has attracted increased attention because of its unique electronic properties with direct bandgap. The exposed active edge sites and large area-specific surfaces present in MoS 2 nanostructures are highly interesting properties of the materials. It was stressed that the preparation methods and composite substrates of MoS 2 -based supercapacitors are one of the deciding factors recorded for improving electrochemical performance. This review aims to appraise the preparations, electrochemical studies, and bibliometric analysis of MoS 2 -based supercapacitors. The top-down and bottom-up methods of preparing MoS 2 with the recent electrochemical properties for their supercapacitor devices were highlighted. Likewise, the analysis of the literature related to MoS 2 -based supercapacitors that are published between 2007 and 2020 using bibliometric analysis, based on retrieved documents from the Scopus database. The ranking of the authors, institutions, journals, and countries was analyzed to evaluate the quality and influence of their publications using different indicators such as the number of articles, total citations, average citations per year, and H-index values. The analysis shows that there has been a remarkable increase in the number of publications since 2013.China was found to be a leading country with the highest number of publications related to MoS 2 -based supercapacitors and international collaboration influences. The bibliometric results show that the most cited articles are spread across the six countries while the United States has the highest number of citations. This review should serve as a guide for energy researchers to select suitable methods of preparation and appropriate research collaboration through bibliometric studies. Finally, we discussed the opportunities created by MoS 2based materials as an ingenious platform for advanced storage capacity. Highlights• MoS 2 is one of the active materials used in the fabrication of two-dimensional-supercapacitors devices and successfully applied in energy storage applications.

Non‐modulated synthesis of cobalt‐doped MoS 2 for improved supercapacitor performance

“…MoS 2 materials have become a popular alternative for supercapacitors due to their graphene-like structure and intriguing electrical, mechanical, and optical properties. 21 The high theoretical capacitance ($1504 Fg À1 ) of MoS 2 has pinched the attention of the scientific world to extensively explore its promising properties for supercapacitor candidates. 22 Based on its theoretical capacitance values, the intensive investigation of several composites of MoS 2 -based supercapacitors has been successfully reported for metal hydroxides, activated carbon, graphene, metal oxide, carbon nanotubes, polymers, and metal sulfides.…”

“…MoS 2 is a member of TMDs families that are analogous to graphene with an akin lamellar structure and a weak Van der Waals force of attraction between S‐Mo‐S layers. MoS 2 materials have become a popular alternative for supercapacitors due to their graphene‐like structure and intriguing electrical, mechanical, and optical properties 21 . The high theoretical capacitance (~1504 Fg −1 ) of MoS 2 has pinched the attention of the scientific world to extensively explore its promising properties for supercapacitor candidates 22 .…”

Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS2 Nanoflower

“…The desire to produce a storage device that has a fast charge–discharge ability, with stable cyclic performance, safe operation, and cost-effectiveness led to the development of supercapacitors. Supercapacitors are high-power energy storage devices that possess a better capacitance output than conventional capacitors [ 5 ]. In the field of energy harvesting devices, the supercapacitor is one of the most researched topics.…”

“…In the field of energy harvesting devices, the supercapacitor is one of the most researched topics. High energy/power density, fast charge/discharge capability, and excellent cycling stability are some of the distinguishing characteristics of supercapacitors that make them an appealing candidate technology [ 5 , 6 , 7 , 8 , 9 ]. Based on their storage mechanisms, supercapacitors are classified into electrochemical double-layer capacitors (EDLC) and pseudo-capacitor.…”

Nitrogen‐ and carbon‐richNi2O3nanolayer shieldedNi3Celongated square bipyramidal‐like nanostructures for hybrid supercapacitors

“…2,3 For this reason, supercapacitors (SCs) have received great attention in rechargeable energy storage devices owing to their rapid charge-discharge ability, long durability, and high power density characteristics. [4][5][6][7][8] To further enhance these properties, different kinds of materials such as carbonaceous materials, conductive polymers, and metal hydroxide/oxides/sulfides-based electrode materials have been investigated. 9 To exalt the capacity and energy density properties of SCs, battery-type materials are a promising alternative due to their enriched redox-chemistry, multiple oxidation states, and good electrical conductivity.…”