Synthesis and Characterization of Pt₃Co@Pt Nanocomposites Using Banana Peel Extract as Novel Surfactants

Abstract

The authors describe the preparation of a novel core-shell Pt₃Co@Pt nanocomposite. Banana peel extract (BPE) was selected as surfactant. FTIR showed the presence of carboxyl, amine, and hydroxyl groups in the extract. XRD analysis confirmed the average size of Pt₃Co@Pt nanocomposites around 15 nm, which allowed the assumption of the role of PBE surfactant. H₂PtCl₆ tended to be reduced to Pt atom by hydrogen absorbed on the surface of Pt₃Co core seeds. The nanoparticles (NPs) were characterized by UV-vis, TEM, and XRD. After heating treatment, the crystal structure changed from the face centered cube (fcc) to the face centered tetragonal (fct).

Keywords:

• banana peel extract
• characterization
• chemical reduction
• Pt₃Co@Pt nanocomposites

Additional information

Funding

This work was supported by Hainan Province Natural Science Foundation of China (Grant Number (211009) and the National Natural Science Foundation of China (Grant No. 51263006/E031301).