Synthesis and Characterization of Layered Double Hydroxides with a High Aspect Ratio
Tao, Qi, Zhang, Yuanming, Zhang, Xiang, Yuan, Peng, & He, Hongping (2006) Synthesis and Characterization of Layered Double Hydroxides with a High Aspect Ratio. Journal of Solid State Chemistry, 179(3), pp. 708-715.
A new route for synthesis of Mg/Al layered double hydroxide (Mg6Al2(OH)16(CO3)•4H2O) has been introduced, which can be considered as a modified calcination-rehydration method. Under the hydrothermal conditions, LDHs with a high aspect ratio were synthesized and characterized by inductively coupled plasma-atom emission spectrometer (ICP-AES), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermal measurement (TG-DTG) and scanning electron microscopy (SEM). XRD patterns display the crystalline enhanced with the increase of hydrothermal temperature and aging time. TG-DTG curves show the more stable LDHs were synthesized at higher temperature. SEM images indicate the lateral size of the synthesized LDHs locates at ca. 1 - 6 μm and the thickness at ca. 35 - 60 nm. And the particle size depends strongly on the treatment temperature and aging time. A buffer solution consisted of HCO3- and CO32- keeps the pH of reaction system in a certain range and offers a low supersaturated reaction circumstance. This is of high importance for the formation of LDHs with a high aspect ratio.
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Journal Article|
|Keywords:||Layered double hydroxides, Calcination, rehydration method, High aspect ratio, Hydrothermal treatment, Scanning electron microscopy|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2006 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||13 Jul 2006|
|Last Modified:||09 Jun 2010 22:33|
Repository Staff Only: item control page