Synthesis of highly monodisperse Pd nanoparticles using a binary surfactant combination and sodium oleate as a reductant. Issue 9 (13th April 2021)

• Record Type: Journal Article
• Authors: Pekkari, Anna; Wen, Xin; Orrego-Hernández, Jessica; da Silva, Robson Rosa; Kondo, Shun; Olsson, Eva; Härelind, Hanna; Moth-Poulsen, Kasper
• Is Part Of: Nanoscale advances. Volume 3:Issue 9(2021)
• Page Start: 2481
• Page End: 2487
• Publication Date: 2021-04-13
• Subjects: 620.5
• DOI: 10.1039/d1na00052g
• Languages: English
• ISSNs: 2516-0230

Abstract

Abstract : This study presents the synthesis of monodisperse Pd nanoparticles (NPs) stabilized by sodium oleate (NaOL) and hexadecyltrimethylammonium chloride (CTAC). Abstract : This study presents the synthesis of monodisperse Pd nanoparticles (NPs) stabilized by sodium oleate (NaOL) and hexadecyltrimethylammonium chloride (CTAC). The synthesis was conducted without traditional reductants and Pd-precursors are reduced by NaOL. It was confirmed that the alkyl double bond in NaOL is not the only explanation for the reduction of Pd-precursors since Pd NPs could be synthesized with CTAC and the saturated fatty acid sodium stearate (NaST). A quantitative evaluation of the reduction kinetics using UV-Vis spectroscopy shows that Pd NPs synthesized with both stabilizer combinations follow pseudo first-order reaction kinetics, where NaOL provides a faster and more effective reduction of Pd-precursors. The colloidal stabilization of the NP surface by CTAC and NaOL is confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) analysis.