Large‐Scale Synthesis of Isotropic Single‐Crystalline ScF3 Cubes by Hydrothermal Method. Issue 5 (1st April 2014)

• Record Type: Journal Article
• Authors: Hu, Lei; Chen, Jun; Pan, Zhao; Deng, Jinxia; Yu, Ranbo; Xing, Xianran; Barnes, P.
• Is Part Of: Journal of the American Ceramic Society. Volume 97:Issue 5(2014)
• Page Start: 1386
• Page End: 1388
• Publication Date: 2014-04-01
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12932
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12932-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Scandium fluoride (ScF₃) belongs to one of the rare compounds which exhibit isotropic negative thermal expansion. Here, a facile and environmentally friendly hydrothermal synthesis method has been presented. High‐quality single‐crystalline ScF₃ cubes, with an average size of 200 nm, can be easily fabricated in a large scale. Sc(NO₃)₃ and NH₄HF₂ were used as precursors. The as‐prepared ScF₃ demonstrates cubic symmetry (<italic>Pm</italic>‐3 <italic>m</italic>), which was confirmed by X‐ray diffraction and selected‐area electron diffraction. Its uniform morphology and size were characterized by high‐resolution transmission electron microscopy. Furthermore, thermal analysis was also performed in argon gas atmosphere to investigate its thermal stability.</p> </abstract>