Microstructure construction and composition modification of CeO2 macrospheres with superior performance

Jiang, Shuaiyu and Yang, Xiaodan and Chen, Jun and Xing, Xianran and Wang, Lianzhou and Yu, Ranbo (2016) Microstructure construction and composition modification of CeO2 macrospheres with superior performance. Inorganic Chemistry Frontiers, 3 (1). pp. 92-96. ISSN 2052-1545

Abstract

Macro/nano-composite CeO2 spheres with variable diameters of 30-300 μm assembled from nanoparticles of 5-8 nm were synthesized through the calcination of the well assembled spherical Ce(COOH)3 precursor. The controlled hydrolysis of DMF is the key factor for both the crystallization of Ce(COOH)3 and the formation of its macrospheres. These hierarchical CeO2 macrospheres possess pretty high specific surface areas of up to ∼190 m2 g-1 and show an excellent ability to remove Cr(vi) from aqueous solution. Moreover, when substituted with Bi(iii), the oxygen storage capacity (OSC) of these CeO2 spheres could be improved sharply to 3243.75 μmol [O] g-1. With an easy-to-manipulate macroscale spherical morphology, these materials are easily recycled. This synthesis opens a promising route for high performance metal oxides.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
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: 14 Jun 2017 01:15
Last Modified: 18 Dec 2017 06:32
Fields of Research : 03 Chemical Sciences > 0302 Inorganic Chemistry > 030299 Inorganic Chemistry not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1039/c5qi00140d
URI: http://eprints.usq.edu.au/id/eprint/31921

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