Two-Dimensional Nb-Based M4C3 Solid Solutions (MXenes)

Yang, Jian (author): Drexel University, PA 19104 USA; Drexel University, PA 19104 USA; Nanjing Technical University, Peoples R China

Halim, Joseph, 1985- (author): Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten,Drexel University, PA 19104 USA; Drexel University, PA 19104 USA

Gogotsi, Yury (author): Drexel University, PA 19104 USA; Drexel University, PA 19104 USA

Barsoum, Michel W. (author): Drexel University, PA 19104 USA; Drexel University, PA 19104 USA

(creator_code:org_t)

2015-10-15
2016
English.
In: Journal of The American Ceramic Society. - : WILEY-BLACKWELL. - 0002-7820 .- 1551-2916. ; 99:2, s. 660-666

Related links:: https://www.osti.gov...; show more...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

Herein, two new two-dimensional Nb4C3-based solid solutions (MXenes), (Nb-0.8,Ti-0.2)(4)C3Tx and (Nb-0.8,Zr-0.2)(4)C3Tx (where T is a surface termination) were synthesizedas confirmed by X-ray diffractionfrom their corresponding MAX phase precursors (Nb-0.8,Ti-0.2)(4)AlC3 and (Nb-0.8,Zr-0.2)(4)AlC3. This is the first report on a Zr-containing MXene. Intercalation of Li ions into these two compositions, and Nb4C3Tx was studied to determine the potential of those materials for energy storage applications. Lithiation and delithiation peaks at 2.26 and 2.35 V, respectively, appeared in the case of Nb4C3Tx, but were not present in Nb2CTx. After 20 cycles at a rate of C/4, the specific capacities of (Nb-0.8,Ti-0.2)(4)C3Tx and (Nb-0.8,Zr-0.2)(4)C3Tx were 158 and 132 mAh/g, respectively, both slightly lower than the capacity of Nb4C3Tx.

By the author/editor: Yang, Jian; Naguib, Michael; Ghidiu, Michael; Pan, Li-Mei; Gu, Jian; Nanda, Jagjit; show more...; Halim, Joseph, 1 ...; Gogotsi, Yury; Barsoum, Michel ...; show less...

About the subject

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