Bahar Ronnasi, - Student, School of Materials Science and Metallurgy Engineering, College of Engineering,University of Tehran, Tehran, Iran
Somayeh Mohammadi - Assistant Professor, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran.
Mehrnoosh Mahmoodian, - Postdoctoral Researcher, Nano-Electronics and Thin Film Lab, School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran. Research Fellow, HamavaInnovation Factory, Tehran,Iran.
Zeinab Sanaee - Assistant Professor, School of Electrical and Computer Engineering, College of Engineering,University of Tehran, Tehran, Iran.

MXenes are recently-discovered (introduced in 2011) two-dimensional nanomaterials consisting of Graphene-like structures with sequential sheets of an early transition metal (M) and carbon or nitrogen (X) layers and termination groups (T) with a general formula of Mn+1XnTx. Their exclusive properties such as high electrical conductivity, large surface area, and hydrophilicity due to the presence of surface termination groups have made them promising candidates as electrodes in energy storage devices. The first introduced MXene was two-dimensional Titanium Carbide (Ti3C2Tx) which has since attracted considerable attention in the supercapacitor society due to having the highest electrical conductivity among the MXene family.In this work, Ti3C2Tx MXene nanosheets are synthesized, starting with the fabrication of the precursor called MAXphase via Spark Plasma Sintering (SPS) followed by chemical etching with Hydrofluoric acid solution.A supercapacitor electrode was prepared with the obtained MXene powder as the active material. The electrochemical properties of this electrode were evaluated in a KCl solution. Results indicate that the prepared electrode demonstrates high electrical conductivity and high capacitance of 54.6 F/g through both the Double layer and pseudocapacitance mechanisms.

Two Dimensional Nanomaterials, MXene, Spark Plasma Sintering, Supercapacitor.