Authors: Liu, M N¹; Xue, D F²; Yan, C¹; Bell, J¹

Source: Materials Technology: Advanced Performance Materials, Volume 27, Number 1, February 2012 , pp. 92-94(3)

Publisher: Maney Publishing

Abstract:

Lithium niobate hollow spheres and octahedra with rough surfaces have been successfully fabricated from a novel H₂(H₂O)Nb₂O₆ precursor by in situ combustion treatment. X-ray diffraction and scanning electronic microscopy were used to study the phase composition and microstructure of the obtained lithium niobate. Experimental results demonstrated that H₂(H₂O)Nb₂O₆ hollow spheres and octahedra can be facilely transformed into their corresponding hexagonal phase LiNbO₃ crystallites without destroying the microstructures, even though through an intense combustion treatment. These hollow and rough octahedral structures may open up large perspectives for LiNbO₃. The present in situ conversion strategy by coating flexible H₂(H₂O)Nb₂O₆ precursors to form microscopic reactors could also be extended to other niobates with various structures.

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Keywords: LiNbO3; in situ combustion treatment

Document Type: Original Article

DOI: http://dx.doi.org/10.1179/175355511X13240279339608

Affiliations: 1: Queensland University of Technology, 2 George Street, Brisbane, Qld 4001, Australia 2: Dalian University of Technology, Dalian 116024, China

Publication date: 2012-02-01

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