Abstract
A new MXene phase, Ti2C, obtained by aluminum extraction from Ti2AlC and exfoliation of the reaction product, was electrochemically studied vs. Lithium. Li-ions insertion into the 2-D structure was characterized by in situ XRD measurements. Additional electrochemical kinetic characterizations of Ti2C, using a cavity micro-electrode, showed that the electrochemical reactions involve two different phenomena: one diffusion-limited, the other not. A Ti2C/activated carbon asymmetric cell was assembled to highlight the high rate performance of the MXene. The cell was cycled between 1.0 V and 3.5 V, and showed good capacity retention during 1000 galvanostatic charge/discharge cycles at rates up to 10C.
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CITATION STYLE
Come, J., Naguib, M., Rozier, P., Barsoum, M. W., Gogotsi, Y., Taberna, P.-L., … Simon, P. (2012). A Non-Aqueous Asymmetric Cell with a Ti 2 C-Based Two-Dimensional Negative Electrode. Journal of The Electrochemical Society, 159(8), A1368–A1373. https://doi.org/10.1149/2.003208jes
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