Application of g-C3N4/sol—gel nanocomposite on AM60B magnesium alloy and investigation of its properties

Samadianfard R., Seifzadeh D., Dikici B.

International Journal of Minerals, Metallurgy and Materials, cilt.30, sa.6, ss.1113-1127, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 6
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s12613-022-2581-6
  • Dergi Adı: International Journal of Minerals, Metallurgy and Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1113-1127
  • Anahtar Kelimeler: Mg alloy, corrosion protection, sol-gel, g-C3N4 nanocomposite, electrochemical impedance spectroscopy, SOL-GEL COATINGS, ACTIVE CORROSION PROTECTION, GRAPHENE OXIDE, SILICA NANOPARTICLES, PERFORMANCE, MORPHOLOGY, FILM, RESISTANT
  • Atatürk Üniversitesi Adresli: Evet

Özet

To protect the AM60B magnesium alloy from corrosion, a sol—gel coating containing hydroxylated g-C3N4 nanoplates was applied. The chemical composition of the hydroxylated g-C3N4 nanoplates was investigated using X-ray photoelectron spectroscopy (XPS). The hydroxylation process did not affect the crystal size, specific surface area, pore volume, average pore diameter, and thermal stability of the g-C3N4 nanoplates. After incorporating pristine and hydroxylated g-C3N4 nanoplates, dense sol-gel coatings were obtained. Transmission electron microscopy (TEM) revealed the uniform distribution of the modified g-C3N4 in the coating. The average roughness of the coating was also reduced after adding the modified nanoplates due to the decreased aggregation tendency. Electrochemical impedance spectroscopy (EIS) examinations in simulated acid rain revealed a significant improvement in the anticorrosion properties of the sol—gel film after the addition of the modified g-C3N4 due to the chemical bonding of the coating to the nanoplates.