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.

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