Effect of Postetch Annealing Gas Composition on the Structural and Electrochemical Properties of Ti 2 CT x MXene Electrodes for Supercapacitor Applications
King Abdullah University of Science and Technology
Abstract
Two-dimensional Ti2CTx MXene nanosheets were prepared by the selective etching of Al layer from Ti2AlC MAX phase using HF treatment. The MXene sheets retained the hexagonal symmetry of the parent Ti2AlC MAX phase. Effect of the postetch annealing ambient (Ar, N2, N2/H2, and air) on the structure and electrochemical properties of the MXene nanosheets was investigated in detail. After annealing in air, the MXene sheets exhibited variations in structure, morphology, and electrochemical properties as compared to HF treated MAX phase. In contrast, samples annealed in Ar, N2, and N2/H2 ambient retained their original morphology. However, a significant improvement in the supercapacitor performance is observed upon…
Citation impact
- FWCI
- 22.60
- Percentile
- 100%
- References
- 33
Authors
5- RRR.B. Rakhi
King Abdullah University of Science and Technology
- BABilal Ahmed
King Abdullah University of Science and Technology
- MNMohamed Nejib Hedhili
King Abdullah University of Science and Technology
- DHDalaver H. Anjum
King Abdullah University of Science and Technology
- HNHusam N. AlshareefCorresponding
King Abdullah University of Science and Technology
Topics & keywords
- Annealing (glass)
- Materials science
- Supercapacitor
- Electrochemistry
- Electrode
- Chemical engineering
- Electrolyte
- Capacitance