Uniform mesoporous silica hexagon and its two-dimensional colloidal crystal

Yu Shen Lin; Chun Yi David Lu; Yann Hung; Chung Yuan Mou

doi:10.1002/cphc.200900251

Uniform mesoporous silica hexagon and its two-dimensional colloidal crystal

Yu Shen Lin, Chun Yi David Lu, Yann Hung, Chung Yuan Mou

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

14 Citations (Scopus)

Abstract

Well-ordered mesoporous silica nanoparticles with uniform hexagonal disk shapes are synthesized under dilute alkaline conditions with a two-step process, separating the nucleation and growth process. The resulting monodisperse hexagons can be arranged in a 2-dimensional (2D) ordered periodical super-structure. The hexagonal symmetry is similar in both scales. A statistical mechanical cell model is applied to analyze consequences of the interesting packing structure, including osmotic bulk modulus, phase separation and defects.

Original language	English
Pages (from-to)	2628-2632
Number of pages	5
Journal	ChemPhysChem
Volume	10
Issue number	15
DOIs	https://doi.org/10.1002/cphc.200900251
Publication status	Published - Oct 19 2009
Externally published	Yes

Keywords

Colloidal crystals
Hexagons
Mesoporous silica
Phase separation
Self-assembly

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry

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10.1002/cphc.200900251

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AU - Lu, Chun Yi David

AU - Hung, Yann

AU - Mou, Chung Yuan

PY - 2009/10/19

Y1 - 2009/10/19

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AB - Well-ordered mesoporous silica nanoparticles with uniform hexagonal disk shapes are synthesized under dilute alkaline conditions with a two-step process, separating the nucleation and growth process. The resulting monodisperse hexagons can be arranged in a 2-dimensional (2D) ordered periodical super-structure. The hexagonal symmetry is similar in both scales. A statistical mechanical cell model is applied to analyze consequences of the interesting packing structure, including osmotic bulk modulus, phase separation and defects.

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KW - Hexagons

KW - Mesoporous silica

KW - Phase separation

KW - Self-assembly

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Uniform mesoporous silica hexagon and its two-dimensional colloidal crystal

Abstract

Keywords

ASJC Scopus subject areas

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