The simple and facile methods to improve dispersion stability of nanoparticles: Different chain length alkylcarboxylate mixtures

Longhai Piao; Kyung Hoon Lee; Won Jong Kwon; Sang Ho Kim; Sungho Yoon

doi:10.1016/j.jcis.2009.03.072

The simple and facile methods to improve dispersion stability of nanoparticles: Different chain length alkylcarboxylate mixtures

Longhai Piao, Kyung Hoon Lee, Won Jong Kwon, Sang Ho Kim, Sungho Yoon

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

The dispersion stability of the Ag nanoparticles with a mixed surfactant of alkylcarboxylates was quantitatively examined, compared with those of the Ag nanoparticles with a single molecule surfactant of alkylcarboxylates. The nanoparticles with a mixed surfactants have far-improved dispersion stability compared with those with normal alkylcarboxylates. The surface roughness of the surfactant layer might be responsible for the improved dispersion stability through the enhanced solvent-surfactant interaction and the decrease in inter-particle surfactant interactions.

Original language	English
Pages (from-to)	208-211
Number of pages	4
Journal	Journal of Colloid and Interface Science
Volume	334
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2009.03.072
State	Published - Jun 15 2009
Externally published	Yes

Funding

This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (No. R11-2005-048-00000-0) and by a grant from the Fundamental R & D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.

Keywords

Carboxylic acids
Colloids
Dispersion stability
Mixed surfactant
Silver nanoparticle

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10.1016/j.jcis.2009.03.072

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abstract = "The dispersion stability of the Ag nanoparticles with a mixed surfactant of alkylcarboxylates was quantitatively examined, compared with those of the Ag nanoparticles with a single molecule surfactant of alkylcarboxylates. The nanoparticles with a mixed surfactants have far-improved dispersion stability compared with those with normal alkylcarboxylates. The surface roughness of the surfactant layer might be responsible for the improved dispersion stability through the enhanced solvent-surfactant interaction and the decrease in inter-particle surfactant interactions.",

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AU - Kim, Sang Ho

AU - Yoon, Sungho

PY - 2009/6/15

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KW - Mixed surfactant

KW - Silver nanoparticle

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The simple and facile methods to improve dispersion stability of nanoparticles: Different chain length alkylcarboxylate mixtures

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Keywords

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