Shape controllable synthesis of NdFeO3 micro single crystals by a hydrothermal route

Wang, You and Yan, Xuecheng and Chen, Jun and Deng, Jinxia and Yu, Ranbo and Xing, Xianran (2014) Shape controllable synthesis of NdFeO3 micro single crystals by a hydrothermal route. CrystEngComm, 16 (5). pp. 858-862.

Abstract

Orthorhombic NdFeO3 (space group: Pnma) crystals with controlled morphologies and sizes were synthesized via a hydrothermal method. The morphologies of the final products strongly depend on the concentration of alkali. When the concentration of the KOH solution was adjusted from 16 M to 19 M, cuboid, cross-shaped and bar-shaped NdFeO3 crystals were obtained respectively. The bar-shaped NdFeO3 crystals are preferentially oriented along the direction of [010]. The formation of NdFeO3 crystals can be explained by a 'dissolution-precipitation' mechanism. It is interesting to find that if the precipitates are isolated by centrifugation before hydrothermal treatment, then mixed with KOH solutions, followed by adding an appropriate amount of KNO3, the rod-shaped NdFeO3 crystals with high aspect ratio and small size will be obtained in the hydrothermal route. The magnetic properties of NdFeO3 crystals with different shapes were also explored.'


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 09 Oct 2017 01:54
Last Modified: 09 Oct 2017 01:54
Uncontrolled Keywords: orthorhombic NdFeO3 crystals; synthesis; hydrothermal method; concentration; alkali; shape; crystals; 'dissolution-precipitation' mechanism; centrifugation; hydrothermal treatment; magnetic properties
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030306 Synthesis of Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1039/c3ce41434e
URI: http://eprints.usq.edu.au/id/eprint/31958

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