Novel Ti3C2X2 MXene supported BaMnO3 nanoparticles as hydrazine electrooxidation catalysts


Ulaş B., ÇETİN T., KAYA Ş., Akınay Y., DEMİR KIVRAK H.

International Journal of Hydrogen Energy, vol.58, pp.726-736, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 58
  • Publication Date: 2024
  • Doi Number: 10.1016/j.ijhydene.2024.01.280
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.726-736
  • Keywords: BaMnO3, Fuel cell, Hydrazine electrooxidation, MXene
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

In this study, MXene Ti3C2X2 and BaMnO3 nanoparticle-doped MXene particles were prepared by HF etching mechanism and hydrothermal method. Scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDX), transmission electron microscopy (TEM), and X-ray diffraction (XRD) methods were utilized for the characterization of as-synthesized catalysts. The presence of BaMnO3 nanoparticles in the catalyst system was confirmed by XRD and EDX spectra. The catalytic activity of the BaMnO3/MXene catalyst for hydrazine electrooxidation was investigated by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) in a basic medium. The mass activities of bare MXene and BaMnO3/MXene for hydrazine electrooxidation were determined as 309.5 and 731.7 mA mg−1, respectively. Increasing specific activity attributed to the improvement of the kinetics for the hydrazine electrooxidation reaction on MXene with the addition of BaMnO3. BaMnO3/MXene has been found to have lower charge transfer resistance and higher electrocatalytic activity than MXene. Novel BaMnO3/MXene catalyst showed super performance for hydrazine electrooxidation.