Synthesis and crystal structure of La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) and electric conductivity of La0.9Ca0.1Cr0.5Ni0.5O 3

G. J. Zhang; Y. W. Song; H. Xiong; J. Y. Zheng; Y. Q. Jia

doi:10.1016/S0254-0584(01)00343-1

Synthesis and crystal structure of La_0.9Ca_0.1Cr_1-xNi_xO ₃ (x = 0.0-1.0) and electric conductivity of La_0.9Ca_0.1Cr_0.5Ni_0.5O ₃

G. J. Zhang, Y. W. Song, H. Xiong, J. Y. Zheng, Y. Q. Jia

Micron School of Materials Science and Engineering

East China University of Science and Technology

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

9 Scopus citations

Abstract

A series of compounds La_0.9Ca_0.1Cr_1-xNi_xO ₃ (x = 0.0-1.0) are synthesized by a wet chemical method. The crystal structure of La_0.9Ca_0.lCr_1-xNi_xO ₃ will become from an orthorhombic system (x < 0.7) to a hexagonal system (x > 0.8). The calculation for the valence orbital ionization energy (VOIP) of 3d electron of the Cr³⁺ and Ni³⁺ ion indicates the possible presence of the Cr⁴⁺ ion in the compounds. The electric conductivity of the compound in air is measured over a temperature range from 293 to 1073 K. Arrhenius plot of ln(σT) versus 1/T for La_0.9Ca_0.lCr_0.5Ni_0.5O ₃ is composed of two line segments. The discontinuity at 465 K in Arrhenius plot may indicate the occurrence of the phase transformation in the compound. The crystal structure of La_0.9Ca_0.lCr_l-xNi_xO ₃ will vary not only with the content of the nickel ion, but also with temperature.

Original language	English
Pages (from-to)	101-105
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	73
Issue number	1
DOIs	https://doi.org/10.1016/S0254-0584(01)00343-1
State	Published - 2 Jan 2002

Keywords

Crystal structure
Electric conductivity
Phase translation
Synthesis

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title = "Synthesis and crystal structure of La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) and electric conductivity of La0.9Ca0.1Cr0.5Ni0.5O 3",

abstract = "A series of compounds La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) are synthesized by a wet chemical method. The crystal structure of La0.9Ca0.lCr1-xNixO 3 will become from an orthorhombic system (x < 0.7) to a hexagonal system (x > 0.8). The calculation for the valence orbital ionization energy (VOIP) of 3d electron of the Cr3+ and Ni3+ ion indicates the possible presence of the Cr4+ ion in the compounds. The electric conductivity of the compound in air is measured over a temperature range from 293 to 1073 K. Arrhenius plot of ln(σT) versus 1/T for La0.9Ca0.lCr0.5Ni0.5O 3 is composed of two line segments. The discontinuity at 465 K in Arrhenius plot may indicate the occurrence of the phase transformation in the compound. The crystal structure of La0.9Ca0.lCrl-xNixO 3 will vary not only with the content of the nickel ion, but also with temperature.",

keywords = "Crystal structure, Electric conductivity, Phase translation, Synthesis",

author = "Zhang, {G. J.} and Song, {Y. W.} and H. Xiong and Zheng, {J. Y.} and Jia, {Y. Q.}",

year = "2002",

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doi = "10.1016/S0254-0584(01)00343-1",

language = "English",

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T1 - Synthesis and crystal structure of La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) and electric conductivity of La0.9Ca0.1Cr0.5Ni0.5O 3

AU - Zhang, G. J.

AU - Song, Y. W.

AU - Xiong, H.

AU - Zheng, J. Y.

AU - Jia, Y. Q.

PY - 2002/1/2

Y1 - 2002/1/2

N2 - A series of compounds La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) are synthesized by a wet chemical method. The crystal structure of La0.9Ca0.lCr1-xNixO 3 will become from an orthorhombic system (x < 0.7) to a hexagonal system (x > 0.8). The calculation for the valence orbital ionization energy (VOIP) of 3d electron of the Cr3+ and Ni3+ ion indicates the possible presence of the Cr4+ ion in the compounds. The electric conductivity of the compound in air is measured over a temperature range from 293 to 1073 K. Arrhenius plot of ln(σT) versus 1/T for La0.9Ca0.lCr0.5Ni0.5O 3 is composed of two line segments. The discontinuity at 465 K in Arrhenius plot may indicate the occurrence of the phase transformation in the compound. The crystal structure of La0.9Ca0.lCrl-xNixO 3 will vary not only with the content of the nickel ion, but also with temperature.

AB - A series of compounds La0.9Ca0.1Cr1-xNixO 3 (x = 0.0-1.0) are synthesized by a wet chemical method. The crystal structure of La0.9Ca0.lCr1-xNixO 3 will become from an orthorhombic system (x < 0.7) to a hexagonal system (x > 0.8). The calculation for the valence orbital ionization energy (VOIP) of 3d electron of the Cr3+ and Ni3+ ion indicates the possible presence of the Cr4+ ion in the compounds. The electric conductivity of the compound in air is measured over a temperature range from 293 to 1073 K. Arrhenius plot of ln(σT) versus 1/T for La0.9Ca0.lCr0.5Ni0.5O 3 is composed of two line segments. The discontinuity at 465 K in Arrhenius plot may indicate the occurrence of the phase transformation in the compound. The crystal structure of La0.9Ca0.lCrl-xNixO 3 will vary not only with the content of the nickel ion, but also with temperature.

KW - Crystal structure

KW - Electric conductivity

KW - Phase translation

KW - Synthesis

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U2 - 10.1016/S0254-0584(01)00343-1

DO - 10.1016/S0254-0584(01)00343-1

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VL - 73

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JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Synthesis and crystal structure of La_0.9Ca_0.1Cr_1-xNi_xO ₃ (x = 0.0-1.0) and electric conductivity of La_0.9Ca_0.1Cr_0.5Ni_0.5O ₃

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