Journal
JOURNAL OF ENERGY STORAGE
Volume 55, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2022.105765
Keywords
2D materials; MXenes; Heterostructure; Supercapacitors; TMDCs; Metal nitrides; carbides
Categories
Funding
- Department of Science and Technology (DST) - SERB Early Career Research project [ECR/2017/001850]
- DST-Nanomission [DST/NM/NT/2019/205 (G)]
- Karnataka Science and Technology Promotion Society [829/315]
- King Khalid University under the Research Center for Advanced Materials (RCAMS) at King Khalid University, Saudi Arabia [KKU/RCAMS/22]
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This article thoroughly discusses the research on MXenes and their hybrids with other materials in the field of supercapacitor applications, including their fundamental properties, synthesis strategies, and etching procedures. It also focuses on the current developments, challenges, and future perspectives, as well as the research gap in this field.
With respect to the advancement in electronics and other related technologies, in this current era of industrial revolution there exists a higher demand for efficient energy storage devices which possess properties such as low cost, flexibility, longer life, etc. 2D layered materials have received significant attention in the current century due to its physical, mechanical and optical properties that are suitable for the fabrication of high-performance energy storage devices. Among various 2D materials, transition metal nitrides/carbides collectively known as MXenes got profound interest in material science owing to its smaller thickness, bandgap tunability, good conductivity, better mechanical properties, hydrophilicity, availability of abundant active edge sites and tunable electrochemical properties, etc. Due to these advantages, MXene based materials are demonstrated to be act as a suitable electrode for high performance energy storage devices especially in supercapacitors. But, MXenes have some demerits due to the aggregation and restacking of its layers which stand as a hurdle for its further exploration. Herein, in the present audit, an in-depth study on the supercapacitor applications of MXenes and its hybrids with carbonaceous materials, conducting polymers, transition metal dichalcogenides (TMDs), transition metal oxides (TMOs), etc., is deliberated thoroughly and the fundamental properties, synthesis tactics and etching procedures comprising various kind of MXenes is also highlighted. Likewise, we primarily focus on the current developments, challenges and the future perspectives of MXenes based hybrid materials for supercapacitor applications. This review not only includes the pioneering studies but also comprises of very recent intriguing ones along with the research gap which is conversed through the future perspective discussions.
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