Eco-friendly synthesis of graphene oxide–palladium nanohybrids

Dinorah I. Rodríguez-Otamendi*, Monserrat Bizarro, Víctor Meza-Laguna, Edgar Álvarez-Zauco, Petra Rudolf, Vladimir A. Basiuk, Elena V. Basiuk*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)
91 Downloads (Pure)

Abstract

Nanostructured hybrids of graphene oxide and palladium were fabricated by means of one-step solvent-free gas phase treatment of graphene oxide with the aliphatic amines 1-octadecylamine and 1,8-diaminooctane, followed by in situ decoration with palladium in the liquid medium using palladium chloride as the precursor and citric acid as a mild and environmentally friendly stabilizing and reducing agent. The proposed synthesis method represents an eco-friendly alternative for obtaining nanohybrids of graphene oxide and palladium nanoparticles under mild conditions. Spectroscopic studies evidenced -COOH group derivatization of graphene due to the amidation reaction; transmission electron microscopy demonstrated the formation of nanometer-sized crystalline palladium particles and evidenced that the diamine-functionalization results in a larger particle sizes than observed for monoamine- or non-functionalized substrates. The hybrids obtained have a slightly lower thermal stability than pristine graphene oxide.

Original languageEnglish
Article number106007
Number of pages13
JournalMaterials today communications
Volume35
DOIs
Publication statusPublished - Jun-2023

Keywords

  • Characterization
  • Eco-friendly approach
  • Graphene oxide
  • Nanohybrids
  • Palladium nanoparticles
  • Solvent-free functionalization

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