Growth of Seeded Silica from Si(OEt)&lt;sub&gt;4&lt;/sub&gt; in Ethanol

Nakanishi, Keita; Takamiya, Yoichi

doi:10.2109/jcersj.96.719

Cited by 7 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7 In their model, the particle growth process was assumed to proceed based on the polynucleation of silicon dioxide on the particle surface. 7 In their model, the particle growth process was assumed to proceed based on the polynucleation of silicon dioxide on the particle surface.…”

Section: Introductionmentioning

confidence: 99%

Silica particle growth in metastable supersaturation solution

Kim¹,

Kim

Kim³

2001

J. Mater. Res.

View full text Add to dashboard Cite

In a metastable solution the particle growth rate of silicon dioxide increased with an increase in the initial supersaturation of the metastable solution and agitation speed in the ranges of 2.5 × 10−4 to 2.0 × 10−3 M and 300–1500 rpm, respectively. Based on a power law expression, the particle growth rate order was estimated as 2.0 independent of the initial supersaturation and agitation speed. Meanwhile, the particle growth rate coefficient was enhanced from 2.0 × 10−3 to 1.4 × 10−2 with increase in the agitation speed from 300 to 1500 rpm. From the experimental data, it would appear that the enhanced particle growth rate resulted from the promotion of molecular transport due to the agitation and driving force of the supersaturation in the particle growth process. A slight addition of sodium chloride into the metastable solution caused a marked reduction of the particle growth rate due to the inhibition of growth process by sodium chloride adsorbed on the particle. This effect of sodium chloride on the particle growth appeared in a significant drop of the particle growth rate coefficient from 4.5 × 10−3 to 8.0×10−4 with increase in the sodium chloride concentration from zero to 5.0×10−3 M, but not in the particle growth rate order. The influence of sodium chloride on the particle growth process of silicon dioxide predicted with a Langmuir isotherm matched with the experimental data.

show abstract

Section: Introductionmentioning

confidence: 99%

Silica particle growth in metastable supersaturation solution

Kim¹,

Kim

Kim³

2001

J. Mater. Res.

View full text Add to dashboard Cite

show abstract

“…Among such powders, spherical silica particles larger than 1 µm with monodispersity are highly desirable as spacers of liquid crystal display (LCD) polarized films and dental fillers. Therefore, the particle growth and nucleation of silica in the sol precipitation process have drawn great attention to achieve the control of particle shape, size, and dispersity in the process [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Preparation of large monodispersed spherical silica particles using seed particle growth

Chang¹,

Lee²,

Kim³

2005

Journal of Colloid and Interface Science

102

View full text Add to dashboard Cite

“…Nakanishi and Takamiya prepared monodispersed silica particles up to ca. 0.8/xm by seeding technique [8]. They reported that silica particles grew by polynuclear mechanism in the presence of seed particles [8].…”

Section: Introductionmentioning

confidence: 99%

“…0.8/xm by seeding technique [8]. They reported that silica particles grew by polynuclear mechanism in the presence of seed particles [8]. Bogush et al also prepared monodispersed silica particles by seeding process and suggested an aggregative growth mechanism of the particles [9,10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Growth mechanism of large monodispersed silica particles prepared from tetraethoxysilane in the presence of sodium dodecyl sulfate

Nishimori

Tatsumisago

Minami

1997

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

Abstract. Monodispersed silica particles up to ca. 1.2/zm in diameter were prepared by hydrolysis of tetraethoxysilane in the presence of sodium dodecyl sulfate (SDS). The particle size was increased with an increase of SDS added. The geometrical standard deviation of the particles was decreased with an increase of SDS. In the earlier reaction stage, double spherical particles by the coalescence of the particles were frequently observed when large amounts of SDS were added. Particle size was gradually increased after the coalescence occurred and spherical particles were finally obtained. The results ofNielsen's chronomal analysis suggest that the polynuclear layer growth took place after the coalescence of the particles in the presence of larger amount of SDS.

show abstract

Growth of Seeded Silica from Si(OEt)<sub>4</sub> in Ethanol

Cited by 7 publications

References 2 publications

Silica particle growth in metastable supersaturation solution

Silica particle growth in metastable supersaturation solution

Preparation of large monodispersed spherical silica particles using seed particle growth

Growth mechanism of large monodispersed silica particles prepared from tetraethoxysilane in the presence of sodium dodecyl sulfate

Contact Info

Product

Resources

About