Layered materials and their heterojunctions for supercapacitor applications: a review

Tathagata Kar*, Srinivas Godavarthi, Shaik Khadheer Pasha, Kalim Deshmukh, Lorenzo Martínez-Gómez, Mohan Kumar Kesarla

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review


Supercapacitors have recently emerged as a potential technology with superior charge storage capacity and power density. Layered materials, by the virtue of their morphology and high surface area, are deemed to be potential candidates for storing charge or energy. In this review, the supercapacitive properties and electrochemical stability of different layered materials (MnO2, graphene, g-C3N4, MoS2, and MXenes) in a wide range of electrolytes is discussed. Moreover, an overview of the heterojunctions or composites of these 2D materials is included, emphasizing their synergistic effect towards improved supercapacitive performance and cyclic stability. Most importantly, the capacitive behavior dependence on the working electrode morphology, crystal structure, and type of electrolyte is explained. A future perspective on the design and use of these layered materials and their heterojunctions for commercial applications is presented.

Original languageEnglish
Pages (from-to)357-388
Number of pages32
JournalCritical Reviews in Solid State and Materials Sciences
Issue number3
StatePublished - 2022
Externally publishedYes


  • Electrochemical double layer
  • energy storage
  • heterojunctions
  • layered materials
  • specific capacitance


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