Issue 19, 2021

Design and perspective of amorphous metal nanoparticles from laser synthesis and processing

Abstract

Amorphous metal nanoparticles (A-NPs) have aroused great interest in their structural disordering nature and combined downsizing strategies (e.g. nanoscaling), both of which are beneficial for highly strengthened properties compared to their crystalline counterparts. Conventional synthesis strategies easily induce product contamination and/or size limitations, which largely narrow their applications. In recent years, laser ablation in liquid (LAL) and laser fragmentation in liquid (LFL) as “green” and scalable colloid synthesis methodologies have attracted extensive enthusiasm in the production of ultrapure crystalline NPs, while they also show promising potential for the production of A-NPs. Yet, the amorphization in such methods still lacks sufficient rules to follow regarding the formation mechanism and criteria. To that end, this article reviews amorphous metal oxide and carbide NPs from LAL and LFL in terms of NP types, liquid selection, target elements, laser parameters, and possible formation mechanism, all of which play a significant role in the competitive relationship between amorphization and crystallization. Furthermore, we provide the prospect of laser-generated metallic glass nanoparticles (MG-NPs) from MG targets. The current and potential applications of A-NPs are also discussed, categorized by the attractive application fields e.g. in catalysis and magnetism. The present work aims to give possible selection rules and perspective on the design of colloidal A-NPs as well as the synthesis criteria of MG-NPs from laser-based strategies.

Graphical abstract: Design and perspective of amorphous metal nanoparticles from laser synthesis and processing

Article information

Article type
Perspective
Submitted
15 Feb 2021
Accepted
15 Apr 2021
First published
20 Apr 2021
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2021,23, 11121-11154

Design and perspective of amorphous metal nanoparticles from laser synthesis and processing

S. Liang, L. Zhang, S. Reichenberger and S. Barcikowski, Phys. Chem. Chem. Phys., 2021, 23, 11121 DOI: 10.1039/D1CP00701G

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