Controlled synthesis of Y2O3 nanoplates with improved performance

Zong, Lingbo and Wang, Zumin and Yu, Ranbo and Xu, Pengfei and Wang, Jiali and Deng, Jinxia and Chen, Jun and Xing, Xianran (2014) Controlled synthesis of Y2O3 nanoplates with improved performance. Journal of Nanoparticle Research, 16 (3). ISSN 1388-0764

Abstract

Y2O3 nanoplates composed of nanoparticles with both low-energy and high-energy facets exposed have been synthesized via a facile hydrothermal approach and subsequent calcination treatment. The pH value of the reaction solution was observed to play a key role for the formation and even the size- and thickness-control of the nanoplate-like precursor. On calcination at 900°C for 4 h, the precursors were decomposed into Y2O 3 with well-maintained flake-like morphology. These Y 2O3 nanoplates showed obviously improved catalytic CO oxidation activities than commercial and synthesized nanorod Y2O 3. Under the UV excitation, flake-like Y2O 3:Eu3+ phosphors exhibit strong red photoluminescence emissions, and nanoplates with the reaction temperature of 180°C, reaction time of 36 h, as well as pH value of 7.4 showed the strongest photoluminescence intensity. This precursor-induced path provided not only a meaningful reference for dimension and size controlled synthesis, but also a potential way to achieve high-active facet exposed materials.


Statistics for USQ ePrint 31965
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 19 Jun 2017 01:40
Last Modified: 03 Jul 2017 23:39
Uncontrolled Keywords: Hydrothermal synthesis; Improved performance; Morphology control; Uniform nanoplates; Calcination treatment; Improved performance; Morphology control; Nanoplates; Photoluminescence intensities; Red photoluminescence; Size controlled synthesis; Light and Optics; Nanotechnology; Chemistry, General; Chemical Reactions; Chemical Operations;
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1007/s11051-014-2299-0
URI: http://eprints.usq.edu.au/id/eprint/31965

Actions (login required)

View Item Archive Repository Staff Only