Manipulating the size and morphology of aluminum hydrous oxide nanoparticles by soft-chemistry approaches

Zhu, Huai Yong, Gao, Xueping, Song, Deying Y., Ringer, Simon, Xi, Yunfei, & Frost, Ray L. (2005) Manipulating the size and morphology of aluminum hydrous oxide nanoparticles by soft-chemistry approaches. Microporous and Mesoporous Materials, 85(3), pp. 226-233.

View at publisher


We demonstrate control of the size and morphology of aluminum hydrate nanoparticles synthesized by a hydrothermal reaction through manipulating pH value of the reaction mixture, hydrothermal temperature and the surfactant used. Porous laths formed under acidic conditions, while the lath-width increased with temperature and single-crystal porous laths were formed. At neutral or high pH values, porous plates of several nanometers thick were obtained. The pore sizes on both laths and plates were ~2-3 nm. Stringy lath-shaped nanoparticles were obtained with polyethylene glycol surfactant. It demonstrates that we can precisely control nanoparticle size and morphology using soft chemical methods. Furthermore, these nanoparticles transformed to y-alumina nanocrystallites after heating to 673K, and retained the morphology of the parent boehmite. We provide a detailed characterization of the nanoparticulates and discuss the mechanism of their formation and subsequent transformation.

Impact and interest:

42 citations in Scopus
41 citations in Web of Science®
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® 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 the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

1,803 since deposited on 11 Jul 2006
54 in the past twelve months

Full-text downloads displays 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.

ID Code: 2242
Item Type: Journal Article
Refereed: Yes
Keywords: nanoparticles, hydrothermal synthesis, pore plates, boehmite, alumina, morphology, surfactant, micelles
DOI: 10.1016/j.micromeso.2005.06.001
ISSN: 1387-1811
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2005 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 11 Jul 2006 00:00
Last Modified: 25 Feb 2013 02:52

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page