The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst


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Kivrak H., Khalid S., Caglar A., Alpaslan D., Selcuk K., Dudu T., ...More

ENERGY STORAGE, vol.4, no.1, 2022 (ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 4 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1002/est2.286
  • Journal Name: ENERGY STORAGE
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Academic Search Premier, Applied Science & Technology Source, INSPEC
  • Keywords: electrodeposition, electro-oxidation, formic acid, Pd, poly(methacrylic acid), SOLAR-ENERGY CONVERSION, METHANOL ELECTROOXIDATION, CARBON-MONOXIDE, PLATINUM NANOPARTICLES, EFFICIENT CATALYSTS, HIGH-PERFORMANCE, FOSSIL-FUELS, MILD-STEEL, PD, RU
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

At present, poly(methacrylic acid) (MA), poly(MA) hydrogel, and Pd-doped poly(MA) hydrogel modified electrodes are constructed on graphite pencil (G). The Pd precursor is coated on the poly(MA)/G electrodes surface using the electrodeposition method. These electrodes are characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy, and scanning electron microscopy-energy dispersive X-ray. Poly(MA) hydrogel and Pd-doped poly(MA) hydrogel are successfully prepared by the polymerization and further electrodeposition. Formic acid electro-oxidation (FAEO) activities are examined with cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Poly(MA)/G and Pd doped poly(MA) electrodes exhibit promising electro-catalytic activity with 60 mA current density, greater than literature values. Pd-doped poly(MA) hydrogel electrodes are promising electrodes for FAEO.