A promising sol-gel route to suppress pyrochlore phase during the synthesis of multiferroic Pb(Fe2/3W1/3)O3 using inorganic salts

C. F. Yao; Z. Q. Liu; J. K. Shang

doi:10.1016/j.jallcom.2010.04.190

A promising sol-gel route to suppress pyrochlore phase during the synthesis of multiferroic Pb(Fe_2/3W_1/3)O₃ using inorganic salts

C. F. Yao, Z. Q. Liu, J. K. Shang

Materials Science and Engineering

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

Abstract

This paper reports a promising route to synthesize multiferroic Pb(Fe _2/3W_1/3)O₃ by sol-gel method with inorganic salts of (CH₃COO)₂Pb·H₂O, Fe(NO ₃)₃·9H₂O, and (NH₄)5H ₅[H₂(WO₄)₆]·H₂O. The pyrochlore phase was largely suppressed by increasing the calcination temperature, and high purity of perovskite phase was obtained at 725 °C which is much lower than the temperature used in other synthesizing processes. Microstructural investigations revealed that the synthesized Pb(Fe _2/3W_1/3)O₃ particles have cubic morphology and superlattice crystal structure. The formation of Pb(Fe_2/3W _1/3)O₃ was not sensitive to the pH value of the solution, which is another advantage of this sol-gel method.

Original language	English (US)
Pages (from-to)	429-433
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	502
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.04.190
State	Published - Jul 23 2010

Keywords

Morphology
Pb(FeW)O
Perovskite
Pyrochlore
Sol-gel

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "A promising sol-gel route to suppress pyrochlore phase during the synthesis of multiferroic Pb(Fe2/3W1/3)O3 using inorganic salts",

abstract = "This paper reports a promising route to synthesize multiferroic Pb(Fe 2/3W1/3)O3 by sol-gel method with inorganic salts of (CH3COO)2Pb·H2O, Fe(NO 3)3·9H2O, and (NH4)5H 5[H2(WO4)6]·H2O. The pyrochlore phase was largely suppressed by increasing the calcination temperature, and high purity of perovskite phase was obtained at 725 °C which is much lower than the temperature used in other synthesizing processes. Microstructural investigations revealed that the synthesized Pb(Fe 2/3W1/3)O3 particles have cubic morphology and superlattice crystal structure. The formation of Pb(Fe2/3W 1/3)O3 was not sensitive to the pH value of the solution, which is another advantage of this sol-gel method.",

keywords = "Morphology, Pb(FeW)O, Perovskite, Pyrochlore, Sol-gel",

author = "Yao, {C. F.} and Liu, {Z. Q.} and Shang, {J. K.}",

note = "Funding Information: The authors would like to thank Dr. C.X. Dong in Beihua University (China) for experimental assistance and Prof. X.L. Tan in Iowa State University (USA) for the helpful discussion. The financial supports from the National Basic Research Program of China (grant no. 2010CB631006 ) and the Hundred Talents Program of the Chinese Academy of Sciences are also appreciated.",

year = "2010",

month = jul,

day = "23",

doi = "10.1016/j.jallcom.2010.04.190",

language = "English (US)",

volume = "502",

pages = "429--433",

journal = "Journal of Alloys and Compounds",

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AU - Yao, C. F.

AU - Liu, Z. Q.

AU - Shang, J. K.

N1 - Funding Information: The authors would like to thank Dr. C.X. Dong in Beihua University (China) for experimental assistance and Prof. X.L. Tan in Iowa State University (USA) for the helpful discussion. The financial supports from the National Basic Research Program of China (grant no. 2010CB631006 ) and the Hundred Talents Program of the Chinese Academy of Sciences are also appreciated.

PY - 2010/7/23

Y1 - 2010/7/23

N2 - This paper reports a promising route to synthesize multiferroic Pb(Fe 2/3W1/3)O3 by sol-gel method with inorganic salts of (CH3COO)2Pb·H2O, Fe(NO 3)3·9H2O, and (NH4)5H 5[H2(WO4)6]·H2O. The pyrochlore phase was largely suppressed by increasing the calcination temperature, and high purity of perovskite phase was obtained at 725 °C which is much lower than the temperature used in other synthesizing processes. Microstructural investigations revealed that the synthesized Pb(Fe 2/3W1/3)O3 particles have cubic morphology and superlattice crystal structure. The formation of Pb(Fe2/3W 1/3)O3 was not sensitive to the pH value of the solution, which is another advantage of this sol-gel method.

AB - This paper reports a promising route to synthesize multiferroic Pb(Fe 2/3W1/3)O3 by sol-gel method with inorganic salts of (CH3COO)2Pb·H2O, Fe(NO 3)3·9H2O, and (NH4)5H 5[H2(WO4)6]·H2O. The pyrochlore phase was largely suppressed by increasing the calcination temperature, and high purity of perovskite phase was obtained at 725 °C which is much lower than the temperature used in other synthesizing processes. Microstructural investigations revealed that the synthesized Pb(Fe 2/3W1/3)O3 particles have cubic morphology and superlattice crystal structure. The formation of Pb(Fe2/3W 1/3)O3 was not sensitive to the pH value of the solution, which is another advantage of this sol-gel method.

KW - Morphology

KW - Pb(FeW)O

KW - Perovskite

KW - Pyrochlore

KW - Sol-gel

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