High-capacity freestanding supercapacitor electrode based on electrospun Ti3C2Tx MXene/PANI/PVDF composite
Somayeh Mohammadi,
Shayan Ahmadi,
Hamid Navid,
Reza Azadvari,
Mahmoud Ghafari,
Zeinab Sanaee,
Mohammadreza Moeini
Affiliations
Somayeh Mohammadi
Applied Engineering Science Research Center, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran; Corresponding author.
Shayan Ahmadi
Applied Engineering Science Research Center, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran
Hamid Navid
Applied Engineering Science Research Center, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran
Reza Azadvari
Energy Storage Laboratory, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mahmoud Ghafari
Energy Storage Laboratory, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
Zeinab Sanaee
Energy Storage Laboratory, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mohammadreza Moeini
Applied Engineering Science Research Center, School of Engineering Science, College of Engineering, University of Tehran, Tehran, Iran
In this study, a high-capacity freestanding supercapacitor electrode was developed through electrospinning of a Ti3C2Tx MXene/Polyaniline (PANI)/Polyvinylidene fluoride (PVDF) composite. MXene/PANI composite was achieved through a facile synthesis in which Ti3C2Tx was mixed with PANI Emeraldine salt in N-Methyl-2-Pyrrolidone (NMP) solution using magnetic stirring. PVDF was added to the composite as a flexible binder to facilitate the electrospinning and produce a freestanding electrode. The specific capacitance of the freestanding MXene/PANI/PVDF electrode is 740 Fg-1 at a scan rate of 2 mVs−1, and 895 Fg-1 at a charge-discharge current density of 0.5 Ag-1, which was significantly higher than the specific capacitance of MXene (67 Fg-1) and PANI (54 Fg-1) electrospun electrodes.
