Large-scale fabrication of H2(H2O)Nb2O6 and Nb2O5 hollow microspheres

Liu, Meinan & Xue, Dongfeng (2010) Large-scale fabrication of H2(H2O)Nb2O6 and Nb2O5 hollow microspheres. Materials Research Bulletin, 45(3), p. 333.

View at publisher


Hollow micro-sized H2(H2O)Nb2O6 spheres constructed by nanocrystallites have been successfully synthesized via a bubble-template assisted hydrothermal process. In the reaction process, H2O2 acts as a bubble generator and plays a key role in the formation of the hollow structure. An in situ bubble-template mechanism has been proposed for the possible formation of the hollow structure. The spherelike assemblies of these H2(H2O)Nb2O6 nanoparticles have been transformed into their corresponding pseudohexagonal phase Nb2O5 through a moderate annealing dehydration process without destroying the hierarchical structure. Optical properties of the as-prepared hollow spheres were investigated. It is exciting that the absorption edge of the hollow Nb2O5 microspheres shifts about 18 nm to the violet compared with bulk powders in the UV/vis spectra, indicating its superior optical properties.

Impact and interest:

16 citations in Scopus
13 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:

244 since deposited on 15 Mar 2011
9 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: 40743
Item Type: Journal Article
Refereed: Yes
Keywords: Oxides, Chemical Synthesis, Microstructure, Optical Properties
DOI: 10.1016/j.materresbull.2009.12.007
ISSN: 00255408
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MACROMOLECULAR AND MATERIALS CHEMISTRY (030300) > Synthesis of Materials (030306)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 Elsevier Ltd All rights reserved.
Deposited On: 15 Mar 2011 03:38
Last Modified: 29 Feb 2012 14:31

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page