Department Of Physics

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Author: search.filters.author.Gaur, AnuragSubject: search.filters.subject.supercapacitor

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    Transition metal dichalcogenide (TMDs) electrodes for supercapacitors: A comprehensive review
    (IOP Publishing Ltd, 2021-04-24T00:00:00) Tanwar, Shweta; Arya, Anil; Gaur, Anurag; Sharma, A.L.
    As globally, the main focus of the researchers is to develop novel electrode materials that exhibit high energy and power density for efficient performance energy storage devices. This review covers the up-to-date progress achieved in transition metal dichalcogenides (TMDs) (e.g. MoS2, WS2, MoSe2, and WSe2) as electrode material for supercapacitors (SCs). The TMDs have remarkable properties like large surface area, high electrical conductivity with variable oxidation states. These properties enable the TMDs as the most promising candidates to store electrical energy via hybrid charge storage mechanisms. Consequently, this review article provides a detailed study of TMDs structure, properties, and evolution. The characteristics technique and electrochemical performances of all the efficient TMDs are highlighted meticulously. In brief, the present review article shines a light on the structural and electrochemical properties of TMD electrodes. Furthermore, the latest fabricated TMDs based symmetric/asymmetric SCs have also been reported. � 2021 IOP Publishing Ltd.
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    Polymer Electrolytes: Development and Supercapacitor Application
    (wiley, 2021-03-26T00:00:00) Arya, Anil; Gaur, Anurag; Sharma, A.L.
    Due to the increasing demand for energy globally and the reduction of the traditional energy sources, the development of an efficient and sustainable energy source has grabbed the attention of researchers. So, supercapacitor (SC) is a crucial energy storage device that has gained attention in the energy sector. One important part of any SC cell is the electrolyte. The electrolyte plays an important role in the ion migration in the device between electrodes. Hence, polymer electrolytes are fascinating candidates and fulfil the need due to better mechanical properties and ion dynamics. Consequently, the present chapter will start with a brief introduction to supercapacitors, followed by characteristics of electrolyte, types and modification strategies for the electrolyte. Further, the important preparation techniques and advanced characterization techniques are briefed. Finally, some important developments made using the polymer electrolytes for SC cell are presented (publications and patents). � 2021 Scrivener Publishing LLC.