Heteroatom doping in 2D MXenes for energy storage/conversion applications

Sumanta Sahoo*, Rajesh Kumar*, Iftikhar Hussain*, Kaili Zhang*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

12 Citations (Scopus)
22 Downloads (CityUHK Scholars)

Abstract

MXenes (inorganic metal carbides, nitrides, and carbonitrides) are currently the rising star of two-dimensional (2D) family. After its discovery in 2011, initial research was concentrated on pristine MXenes only. However, in the last few years, the MXene family has been expanded with the exploration of novel double MXenes, synthesis of non-Ti MXenes, and heteroatom doping of MXenes. The current review article delivers an exclusive overview of the current research trends on the heteroatom doping of MXenes. The recent advances in heteroatom doping of MXenes (majorly Ti-MXenes) for energy storage/conversion applications including secondary batteries (Li-ion, Li–S, Na–S, Na-ion, K-ion, Zn-ion batteries), supercapacitors, electrocatalysis, etc. are summarized. A brief overview of the defects as well as doping in various 2D materials is included in the manuscript. Various doping strategies of MXenes are outlined. Moreover, the impact of artificial intelligence/machine learning on MXene research is also concisely discussed. Additionally, the advantages of doping on MXenes are discussed in detail. Lastly, the existing challenges and future prospects of doped MXenes are addressed. It is expected that the current review will open new prospects for the fabrication of advanced energy devices through heteroatom doping of MXenes. © 2024 Central South University. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
Original languageEnglish
Article number100246
JournalAdvanced Powder Materials
Volume3
Issue number6
Online published5 Oct 2024
DOIs
Publication statusPublished - Dec 2024

Funding

R. Kumar gratefully acknowledges the support by the Anusandhan National Research Foundation (ANRF), Department of Science & Technology (DST), New Delhi, India under Ramanujan award (SB/S2/RJN-159/2017). I. Hussain and K. Zhang acknowledge financial support by the Hong Kong Research Grants Council (project number CityU 11201522).

Research Keywords

  • Doping
  • Electrocatalysis
  • MXene
  • Secondary battery
  • Supercapacitor

Publisher's Copyright Statement

  • This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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