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Ion Intercalation into Two-Dimensional Transition-Metal Carbides: Global Screening for New High-Capacity Battery Materials

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Eames, Christopher, Islam, M. Saiful·2014·Journal of the American Chemical Society

Abstract

Two-dimensional transition metal carbides (termed MXenes) are a new family of compounds generating considerable interest due to their unique properties and potential applications. Intercalation of ions into MXenes has recently been demonstrated with good electrochemical performance, making them viable electrode materials for rechargeable batteries. Here we have performed global screening of the capacity and voltage for a variety of intercalation ions (Li(+), Na(+), K(+), and Mg(2+)) into a large number of M2C-based compounds (M = Sc, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta) with F-, H-, O-, and OH-functionalized surfaces using density functional theory methods. In terms of gravimetric capacity a greater amount of Li(+) or Mg(2+) can be intercalated into an MXene than Na(+) or K(+), which is related to the size of the intercalating ion. Variation of the surface functional group and transition metal species can significantly affect the voltage and capacity of an MXene, with oxygen termination leading to the highest capacity. The most promising group of M2C materials in terms of anode voltage and gravimetric capacity (>400 mAh/g) are compounds containing light transition metals (e.g., Sc, Ti, V, and Cr) with nonfunctionalized or O-terminated surfaces. The results presented here provide valuable insights into exploring a rich variety of high-capacity MXenes for potential battery applications.

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Metadata

Authors
Eames, C., & Islam, M. S.
Venue
Journal of the American Chemical Society
Published
2014-10-29
Volume
136
Issue
46
Pages
16270-16276
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2061084956
Cited by
688
References
43
FWCI
16.53
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Ion Intercalation into Two-Dimensional Transition-Metal Carbides: Global Screening for New High-Capacity Battery Materials. https://app.cochat.ai/papers/10.1021/ja508154e
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Eames, C., & Islam, M. S. (2014). Ion Intercalation into Two-Dimensional Transition-Metal Carbides: Global Screening for New High-Capacity Battery Materials. Journal of the American Chemical Society. https://doi.org/10.1021/ja508154e

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