Polyol mediated hexadecylamine capped silver allied nanobimetallic particles and their fluxional properties

Abstract

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractThe syntheses of hexadecylamine seed mediated Ag/M(M = Co, Ni, Pd and Pt) allied nanobimetallic particles were successfully carried out by the successive reduction of ligand capped metal ions with polyols, resulting in concomitant precipitation of some high index faceted hybrid Ag/M bimetal nanoparticles. The optical measurements revealed the existence of surface plasmon band and peak broadening that causes diffusion processes of the metal sols to decrease making it possible to monitor the changes spectrophotometrically. The bimetallic nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and electron microscopy techniques which confirm the formation of alloyed clusters.

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

“…95 In this work, which combines experimental and theoretical approaches, it was proven that the different nano-alloys showed a rough surface with several types of surface defects (kinks, edges, vacancies), with a truncated octahedron morphology; this behavior is in contrast to monometallic nanoparticles for which icosahedra with defect-free surfaces were obtained, structures corresponding to low energy shapes as proven by the authors by theoretical calculations (molecular dynamics cooling process methodology). well-defined AgPd NPs were obtained by sequential addition of both metals in DEG using hexadecylamine, 97 as well as in EG using PVP as capping agent. 98 In this latter case, spherical AgPd NPs were observed by HAADF-STEM analysis (mean diameter ca.…”

“…1:3, in agreement with the ratio used in the synthesis. The addition of stabilizers leads to well-dispersed alloyed AgPd NPs; therefore, well-defined AgPd NPs were obtained by sequential addition of both metals in DEG using hexadecylamine, 97 as well as in EG using PVP as a capping agent. 98 In this latter case, spherical AgPd NPs were observed by HAADF-STEM analysis (mean diameter ca.…”

The effect of polyol on multiple ligand capped silver alloyed nanobimetallic particles in tri- n -octylphosphine oxide and oleic acid matrices

“…The utilization of a wide variety of protective reagents such as polymers [21], mercaptans [22][23][24][25][26] and microemulsions [27] to prevent the nanoparticles produced in the liquid phase from aggregation is an advantage of the ligand mediated synthesis route. More recently, Adekoya et al [28] prepared novel silver alloyed nanoparticles via polyol reduction in hexadecylamine (HDA) capping ligand matrix. Ag/Pd and Ag/Pt nanoparticles of novel alloy morphology with average diameters of 20.60±0.97 and 10.36±1.73 nm, respectively, were achieved.…”