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Published in: Journal of Nanoparticle Research 7/2022

01-07-2022 | Research paper

Facile one-pot synthesis of bimodal-sized nickel nanoparticles in a solvent-directed reaction system

Authors: Shengnan Liu, Sze Kee Tam, Ka Ming Ng

Published in: Journal of Nanoparticle Research | Issue 7/2022

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Abstract

Nickel nanoparticles are an attractive ingredient for preparing metal-based conductive pastes. In particular, using a mixture of nanoparticles containing two different particle sizes as the paste fillers is an effective way to improve the microstructure as well as the electrical conductivity of the printed films after sintering. This study presents a facile solvent-directed chemical reduction method for the synthesis of nickel nanoparticles with bimodal size distribution in one-pot. Through simply adjusting the volume ratio of alcohol (methanol, ethanol or n-propanol) to water and nickel precursor concentration in a mixed solvent system (alcohol and water), the size and size distribution of the synthesized nickel nanoparticles could be controlled. The bimodal nickel nanoparticles obtained at a volume ratio of methanol to water of 2 were used as fillers for a screen-printing paste. After sintering at a temperature of 600 ℃, the printed film exhibited a compact structure with a relatively low volume resistivity of 167.3 µΩ∙cm.

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Metadata
Title
Facile one-pot synthesis of bimodal-sized nickel nanoparticles in a solvent-directed reaction system
Authors
Shengnan Liu
Sze Kee Tam
Ka Ming Ng
Publication date
01-07-2022
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 7/2022
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-022-05520-5

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