Role of the intercalated ions on the high capacitance behavior of Ti₃C₂T_x MXene nanohybrids

Figures & data

Figure 1. Schematic showing the surface termination groups of MXene.

Figure 2. XRD Pattern of Max phase, MXn, Alk-MXn, MXn@C, and MXn@N.

Figure 3. FTIR Spectrum of MXn, Alk-MXn, MXn@C, and MXn@N.

Figure 4. Free energy vs volume graph for MXene.

Figure 5. Electrochemical performance of MXn, Alk-MXn, MXn@C, and MXn@N electrodes.

Table 1. Comparison table of electrochemical performances of MXene at 2 mV/s scan rates.

Sl No	Electrolyte	Specific capacitance (F/g)	Reference
1	MgSO4	97	[55]
2	K2SO4	81	[55]
3	Mg(NO3)2	77	[55]
4	KOH	72	[55]
5	LiOH	110	Present work

Table 2. Specific capacitance of the material at different scan rates.

		Specific	Capacitance	(F/g)
Scan rate (mV/s)	MXn	Alk-MXn	MXn@C	MXn@N
2	40	42	110	42
5	39	34	97	32
10	35	30	88	27
20	31	26	59	22
50	24	19	38	15
100	17	14	29	11

Lukatskaya MR, Mashtalir O, Ren CE, et al. Cation intercalation and high volumetric capacitance of two-dimensional titanium carbide. Science. 2013;341:1502–1505. doi: 10.1126/science.1241488.

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