Issue 31, 2020

Shape control of silver nanoparticles and their stability on Al2O3

Abstract

From antimicrobial studies to photonic devices, silver nanoparticles have been an exciting material, investigated for decades. Much of the efforts have been focused on tunable size, shape and optical properties of silver colloids. Although many advancements have been made there remain key limitations, including oxidation, and reactivity, especially in comparison to more stable gold nanomaterials. In this work, we present a method for stabilizing silver nanoparticles on aluminum oxide scaffolding, mitigating the oxidation and aggregation typical of silver particles, while maintaining their highly tunable plasmonic properties. Herein, alumina stabilized silver nanoparticles are subjected to photochemical shape control where the final particle morphology is dependent on whether the Al2O3 is in a solid or colloid phase. This work provides more insight into the complex mechanism(s) of nanoparticle shape control. Particles, with tunable plasmon modes achieved across the visible spectrum, provide optical properties of great relevance to the fields of chemical sensing, catalysis, and photonics while maintaining long-term stability.

Graphical abstract: Shape control of silver nanoparticles and their stability on Al2O3

Supplementary files

Article information

Article type
Communication
Submitted
12 mrt 2020
Accepted
12 jun 2020
First published
12 jun 2020

J. Mater. Chem. C, 2020,8, 10755-10760

Shape control of silver nanoparticles and their stability on Al2O3

G. C. Beaton, A. J. Bottomley, D. Prezgot, A. Ianoul and K. G. Stamplecoskie, J. Mater. Chem. C, 2020, 8, 10755 DOI: 10.1039/D0TC01280G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements