Synthesis of Stable Oil Dispersions of Silver Nanoparticles

Abstract:

Hydrophobic silver nanoparticles have been carried out by use of ascorbic acid in cyclohexylamine and aqueous medium. Nanosilver can be effectively coated with oleic acid and possesses oil-soluble property. Oleic acid as an extractant is also effective at stabilizing particles of similar size in an oil phase when the AgNO3 is reduced in a coexisting aqueous phase. Stable spherical silver nanoparticles 15~25 nm in diameter with a well-crystallized structure were obtained at 120 °C. The thermal stability of surface-coated silver prepared in cyclohexylamine solution was monitored by UV-vis spectral analysis.

• Periodical: Materials Science Forum (Volume 694)
• Pages: 73-78
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.694.73
• Online since: July 2011
• Authors: Dan Li
• Keywords: Hydrophobic, Silver Nanoparticle, Surface Capped

References

[1] Y Wang, H Yang, Oleic acid as the capping agent in the synthesis of noble metal nanoparticles in imidazolium-based ionic liquids. Chem. Commun. 2545–2547 (2006).

DOI: 10.1039/b604269d

[2] R. A. Yetter, G.A. Risha, S. F. Son, Metal particle combustion and nanotechnology, Proceedings of the Combustion Institute 32, 1819-1838 (2009).

DOI: 10.1016/j.proci.2008.08.013

[3] M. O. Marcela, U. Daniel, Z. Daniela, J.G. Z. Aldo. Influence of synthetic parameters on the size, structure, and stability of dodecanethiol-stabilized silver nanoparticles. J. Colloid Interface Sci. 292, 429-435 (2005).

DOI: 10.1016/j.jcis.2005.05.068

[4] X. Wang, A. S. Mujumdar. Heat transfer characteristics of nanofluids: a review. International Journal of Thermal Sciences 46, 1-19 (2007).

[5] W. Yu, D. M. France, J. L. Routbort, S. U. S Choi. Review and comparison of nanofluid thermal conductivity and heat transfer enhancements. Heat Transfer Eng. 29, 432-460 (2008).

DOI: 10.1080/01457630701850851

[6] C. Choi, H. S. Yoo, J. M. Oh. Preparation and heat transfer properties of nanoparticle-in-transformer oil dispersions as advanced energy-efficient coolants. Curr. Appl. Phys. 8, 710-712 (2008).

DOI: 10.1016/j.cap.2007.04.060

[7] I. Sondi, D. V. Goia, E. Matijević, Preparation of highly concentrated stable dispersions of uniform silver nanoparticles, Journal of Colloid and Interface Science 260, 75-81 (2003).

DOI: 10.1016/s0021-9797(02)00205-9

[8] M. V. Roldán, L. B. Scaffardi, O. de Sanctis, Nora Pellegri. Optical properties and extinction spectroscopy to characterize the synthesis of amine capped silver nanoparticles. Materials Chemistry and Physics 112, 984-990 (2008).

DOI: 10.1016/j.matchemphys.2008.06.057

[9] E. Bulut, M. Özacar. Rapid, Facile synthesis of silver nanostructure using hydrolyzable tannin, Ind. Eng. Chem. Res. 48, 5686-5690 (2009).

DOI: 10.1021/ie801779f

[10] I. Sondi, D. V. Goia, E. Matijević. Preparation of highly concentrated stable dispersions of uniform silver nanoparticles, J. Colloid Interface Sci. 260, 75-81 (2003).

DOI: 10.1016/s0021-9797(02)00205-9

[11] M. V. Roldán, L. B. Scaffardi, O. Sanctis, N. Pellegri. Optical properties and extinction spectroscopy to characterize the synthesis of amine capped silver nanoparticles. Mater. Chem. Phys. 112, 984-990 (2008).

DOI: 10.1016/j.matchemphys.2008.06.057