Synthesis and formation mechanisms of high aspect ratio KNb 5Bi2O16 template via topochemical method

Yongjie Zhao; Yuzhen Zhao; Rongxia Huang; Rongzheng Liu; Heping Zhou

doi:10.1016/j.jallcom.2010.08.032

Synthesis and formation mechanisms of high aspect ratio KNb ₅Bi₂O₁₆ template via topochemical method

Yongjie Zhao^*, Yuzhen Zhao^*, Rongxia Huang, Rongzheng Liu, Heping Zhou

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to journal › Letter › peer-review

1 Citation (Scopus)

Abstract

Plate-like Bi₅Nb₃O₁₅ (B5N3) particles and rectangular KNb₅Bi₂O₁₆ (KN5B2) particles were synthesized by the molten salt process and topochemical microcrystal conversion (TMC), respectively. The effects of the synthesis parameters on the phase structure and morphology of B5N3 precursor and KN5B2 were investigated. Results indicated that the retro-synthesis process of the as-synthesized KN5B2 retained the morphology and structural feature of the B5N3 precursor. The prepared KN5B2 particles with high aspect ratio of 20-30 are promising templates for texturing bismuth-layer and alkali niobate based ceramics by (reactive) templated grain growth method. The same method can be applied to other perovskite-structured templates.

Original language	English
Pages (from-to)	L16-L20
Journal	Journal of Alloys and Compounds
Volume	508
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.08.032
Publication status	Published - 22 Oct 2010
Externally published	Yes

Keywords

Aspect ratio
Morphology
TGG
Topochemical microcrystal conversion

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10.1016/j.jallcom.2010.08.032

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title = "Synthesis and formation mechanisms of high aspect ratio KNb 5Bi2O16 template via topochemical method",

abstract = "Plate-like Bi5Nb3O15 (B5N3) particles and rectangular KNb5Bi2O16 (KN5B2) particles were synthesized by the molten salt process and topochemical microcrystal conversion (TMC), respectively. The effects of the synthesis parameters on the phase structure and morphology of B5N3 precursor and KN5B2 were investigated. Results indicated that the retro-synthesis process of the as-synthesized KN5B2 retained the morphology and structural feature of the B5N3 precursor. The prepared KN5B2 particles with high aspect ratio of 20-30 are promising templates for texturing bismuth-layer and alkali niobate based ceramics by (reactive) templated grain growth method. The same method can be applied to other perovskite-structured templates.",

keywords = "Aspect ratio, Morphology, TGG, Topochemical microcrystal conversion",

author = "Yongjie Zhao and Yuzhen Zhao and Rongxia Huang and Rongzheng Liu and Heping Zhou",

year = "2010",

month = oct,

day = "22",

doi = "10.1016/j.jallcom.2010.08.032",

language = "English",

volume = "508",

pages = "L16--L20",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Synthesis and formation mechanisms of high aspect ratio KNb 5Bi2O16 template via topochemical method

AU - Zhao, Yongjie

AU - Zhao, Yuzhen

AU - Huang, Rongxia

AU - Liu, Rongzheng

AU - Zhou, Heping

PY - 2010/10/22

Y1 - 2010/10/22

N2 - Plate-like Bi5Nb3O15 (B5N3) particles and rectangular KNb5Bi2O16 (KN5B2) particles were synthesized by the molten salt process and topochemical microcrystal conversion (TMC), respectively. The effects of the synthesis parameters on the phase structure and morphology of B5N3 precursor and KN5B2 were investigated. Results indicated that the retro-synthesis process of the as-synthesized KN5B2 retained the morphology and structural feature of the B5N3 precursor. The prepared KN5B2 particles with high aspect ratio of 20-30 are promising templates for texturing bismuth-layer and alkali niobate based ceramics by (reactive) templated grain growth method. The same method can be applied to other perovskite-structured templates.

AB - Plate-like Bi5Nb3O15 (B5N3) particles and rectangular KNb5Bi2O16 (KN5B2) particles were synthesized by the molten salt process and topochemical microcrystal conversion (TMC), respectively. The effects of the synthesis parameters on the phase structure and morphology of B5N3 precursor and KN5B2 were investigated. Results indicated that the retro-synthesis process of the as-synthesized KN5B2 retained the morphology and structural feature of the B5N3 precursor. The prepared KN5B2 particles with high aspect ratio of 20-30 are promising templates for texturing bismuth-layer and alkali niobate based ceramics by (reactive) templated grain growth method. The same method can be applied to other perovskite-structured templates.

KW - Aspect ratio

KW - Morphology

KW - TGG

KW - Topochemical microcrystal conversion

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U2 - 10.1016/j.jallcom.2010.08.032

DO - 10.1016/j.jallcom.2010.08.032

M3 - Letter

AN - SCOPUS:77957859684

SN - 0925-8388

VL - 508

SP - L16-L20

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Synthesis and formation mechanisms of high aspect ratio KNb ₅Bi₂O₁₆ template via topochemical method

Abstract

Keywords

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