A New Insight into the Mechanistic Study on Synthesis of Silica Nanospheres

Dong Shin Yun; Hyun Jung Kim; Hyun Chang Shin; Venkatathri Narayanan; Jung Whan Yoo; Seong Ho Lee; Dong Jin Lee; Nam Hoon Kim

doi:10.4028/www.scientific.net/SSP.124-126.1249

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126A New Insight into the Mechanistic Study on...

A New Insight into the Mechanistic Study on Synthesis of Silica Nanospheres

Abstract:

The physicochemical characteristics (SEM, N2 adsorption, FT-IR, MASNMR) of samples from kinetics (10 min, 20 min, 30 min, 1 h and 3h) of hydrolysis of tetraethyl orthosilicate (TEOS) gives new insight into the synthesis of nanosphere. The particle sizes are increased with time, however, the surface areas decreased. FT-IR investigation reveals the presence of high intensed silanol groups of 960 cm-1 at 10 min, which reduced on progress of the reaction time. This suggests the partial hydrolysis and condensation of alkoxy groups in TEOS. 29Si MASNMR analysis shows the presence three different silica species(Q4, Q3 and Q2) in 10 and 20 min samples. The intensity of Q2 species decreases with time and other species concentration were increased.

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Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

1249-1252

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.1249

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Online since:

June 2007

Authors:

Dong Shin Yun, Hyun Jung Kim, Hyun Chang Shin, Venkatathri Narayanan, Jung Whan Yoo, Seong Ho Lee, Dong Jin Lee, Nam Hoon Kim

Keywords:

FT-IR, Mechanism, Nanospheres, Silica, Si-NMR

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References

[1] C. Frank, R.A. Caruso and H. Molwald: Science Vol. 282 (1998), p.1111.

Google Scholar

[2] W. Stober, A. Fink and E. Bohn: J. Colloid Interface Sci. Vol 26 (968), p.62.

Google Scholar

[3] G.H. Bogush, M.A. Tracy and C.F. Zukoski: J. Non-Cryst. Solids Vol. 104 (1988), p.95.

Google Scholar

[4] T. Matsoukas and E. Gulari: J. Colloid Interface Sci. Vol. 124 (1988), p.252.

Google Scholar

[5] T. Matsoukas and E. Gulari: J. Colloid Interface Sci. Vol. 132 (1989), p.13.

Google Scholar

[6] G. H. Bougush and C. F. Zukoski �: J. Colloid Interface Sci. Vol. 142 (1991), p.1.

Google Scholar

[7] G. H. Bougush and C. F. Zukoski �: J. Colloid Interface Sci. Vol. 142 (1991), p.19.

Google Scholar

[8] V. K. Lamer and R. H. Dinega: J. Am. Chem. Soc. Vol. 72 (1950), p.4847.

Google Scholar

[9] B. Karmakar, G. De and D. Ganguli: J. Non-Crystalline Solids Vol. 272 (2000), p.119., G. Liu, G. Hong and D. Sun: J. Colloid Interface Sci. Vol 278 (2004), p.133.

Google Scholar

[10] J.R. Agger, M.W. Anderson, M.E. Pemble, O. Terasaki and Y. Nozue: J. Phys. Chem. B Vol. 102 (1998), p.3345.

Google Scholar

[11] A. Hunsche, U. Goerl, A. Mueller, M. Knaack and Th. Goebel: Kautsch. Gummi Kunstst. Vol 50 (1997).

Google Scholar