Synthesis and/or grafting of noble metal nanoparticles by microplasma and by atmospheric plasma torch

TL;DR

This paper explores using atmospheric pressure plasmas, including microplasma and plasma torch, for synthesizing and grafting noble metal nanoparticles like gold and platinum onto substrates, offering a fast and versatile method.

Contribution

It introduces novel plasma-based techniques for synthesizing and grafting noble metal nanoparticles, expanding the toolkit for nanomaterial fabrication.

Findings

Successful synthesis of Au and Pt nanoparticles using microplasma and plasma torch methods.

Effective grafting of nanoparticles from colloidal solutions onto substrates.

Potential for rapid and versatile nanoparticle production at atmospheric pressure.

Abstract

Plasmas at atmospheric pressure are presented as a simple, fast, and versatile tool for the synthesis or/and the grafting of noble metallic NPs (Au, Pt) on substrates. In this study, noble metal NPs are generated either by the reduction of a gold salt in an aqueous medium by microplasma or either by the decomposition of a platinum or gold organometallic in the post-discharge of an atmospheric plasma torch. The latter can also be used for the grafting of NPs from a commercial colloidal solution