Imperfect Oriented Attachment: Accretion and Defect Generation of Hexagonal Inorganic-Surfactant Nanoparticles

TFIR > Department of Chemical and Materials Engineering > journal > Item 987654321/667

Please use this identifier to cite or link to this item: http://163.15.40.127/ir/handle/987654321/667

Title:	Imperfect Oriented Attachment: Accretion and Defect Generation of Hexagonal Inorganic-Surfactant Nanoparticles
Authors:	Shen, P.;范樂陽;Fahn, Yauh-Yarng;Su, A. C.;(東方技術學院化工與材料工程系)
Contributors:	東方技術學院化工與材料工程系
Date:	2001
Issue Date:	2010-01-07 11:44:52 (UTC+8)
Abstract:	Imperfect oriented attachment of nanoparticles over specific surfaces is rationalized to cause accretion and defects for the hexagonal inorganic-surfactant mesophase. Analytical electron microscopy indicates that silicate MCM-41 particles, prepared in alkaline hydrothermal condition and then surfactant (cetyltrimethylammonium bromide) leached, have well-developed {10} surfaces with monolayer steps and a rather uniform base with constant tubular wall thickness. These surfaces are beneficial to { 10} vicinal and head-on attachment, causing respectively edge dislocation and twist boundary for hexagonal silicatropic liquid crystal. Brownian motion may proceed above a critical temperature for anchorage release at the interface of imperfectly attached particles until an epitaxial relationship is reached.
Relation:	Nano Letters, 2001, 1 (6), pp 299–303
Appears in Collections:

Files in This Item:

There are no files associated with this item.