Insight into the formation of hollow silver nanoparticles using a facile hydrothermal strategy--颗粒学报PARTICUOLOGY

Li, C., Liu, H., Cui, P., Ye, F., & Yang, J. (2016). Insight into the formation of hollow silver nanoparticles using a facile hydrothermal strategy. Particuology, 24, 197-202. https://doi.org/10.1016/j.partic.2015.08.003

Insight into the formation of hollow silver nanoparticles using a facile hydrothermal strategy

Chengyin Li ^{a b}, Hui Liu ^a, Penglei Cui ^a, Feng Ye ^a, Jun Yang ^a *

a State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
b University of Chinese Academy of Sciences, Beijing 100049, China

10.1016/j.partic.2015.08.003

Volume 24, February 2016, Pages 197-202

Received 23 June 2015, Revised 6 August 2015, Accepted 13 August 2015, Available online 23 October 2015, Version of Record 21 January 2016.

E-mail: jyang@ipe.ac.cn

Highlights

• A hydrothermal approach was used to generate hollow silver nanoparticles (hAgNPs).

• Ag⁺-dodecylamine (DDA) coordination compounds in water/ethanol mixture were prepared first.

• hAgNPs were formed after reducing Ag⁺-DDA coordination compounds at 150 °C for 8 h.

• This synthetic pathway does not rely on any additives.

Abstract

A facile hydrothermal approach is used to synthesize hollow silver nanoparticles, labeled as hAgNPs, involving an initial formation of metal complexes from Ag⁺ ion precursors and dodecylamine in a water/ethanol mixture at room temperature and a subsequent reduction in an autoclave at elevated temperature. A number of characterization techniques are used to characterize the structure and chemical composition of the as-formed hAgNPs, and to understand the mechanism behind the formation. The notable simplicity renders this synthetic approach promising for creating hAgNPs on a large scale for a given technological application, and the mechanistic understanding may provide new opportunities to design and fabricate other hollow nanostructures.

Graphical abstract

Keywords

Hollow structure; Hydrothermal approach; Nanoparticles; Nanostructures; Silver

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