Synthesis, crystal structure, relative content of the Mn4+ ion, tolerance factor and catalytic property of La1-xCa xMnO3 (x = 0.0-1.0)

G. Q. Zhong; H. Xiong; Y. Q. Jia

doi:10.1016/j.matchemphys.2004.09.047

Synthesis, crystal structure, relative content of the Mn⁴⁺ ion, tolerance factor and catalytic property of La_1-xCa _xMnO₃ (x = 0.0-1.0)

G. Q. Zhong
, H. Xiong
, Y. Q. Jia

Micron School of Materials Science and Engineering

SW Univ. of Science and Technology
East China University of Science and Technology

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

22 Scopus citations

Abstract

The series compounds La_1-xCa_xMnO₃ (x = 0.0-1.0) are synthesized by the wet chemical method. When x < 0.5, the crystal structure of La_1-xCa_xMnO₃ belongs to cubic system, when x ≥ 0.5, that of La_1-xCa_xMnO ₃ belongs to orthorhornbic system. The relative contents of the Mn⁴⁺ ion in the series compounds are determined by the chemical analysis methods. The relative content of the Mn⁴⁺ ion in La _1-xCa_xMnO₃ increases gradually with increasing the calcium ion content. When x ≥ 0.5, there is neither the oxygen excess nor the lanthanum deficiency in the compound. The tolerance factor of La _1-xCa_xMnO₃ is calculated and no anomaly in the variation of tolerance factor of La_1-xCa_xMnO₃ with x is found. The catalysis activity of La_1-xCa _xMnO₃ for NO_y reduction by C₃H ₆ varies with x and there is a minimum in the variation of the largest conversion efficiency for NO_y reduction with the composition of La_1-xCa_xMnO₃.

Original language	English
Pages (from-to)	10-16
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	91
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2004.09.047
State	Published - 15 May 2005

Keywords

Catalytic property
Crystal structure
Lanthanum manganate
Tetravalent manganese ion
Tolerance factor

Access to Document

10.1016/j.matchemphys.2004.09.047

Cite this

@article{14d5f23c08cd413e9b2462e88895fd1f,

title = "Synthesis, crystal structure, relative content of the Mn4+ ion, tolerance factor and catalytic property of La1-xCa xMnO3 (x = 0.0-1.0)",

abstract = "The series compounds La1-xCaxMnO3 (x = 0.0-1.0) are synthesized by the wet chemical method. When x < 0.5, the crystal structure of La1-xCaxMnO3 belongs to cubic system, when x ≥ 0.5, that of La1-xCaxMnO 3 belongs to orthorhornbic system. The relative contents of the Mn4+ ion in the series compounds are determined by the chemical analysis methods. The relative content of the Mn4+ ion in La 1-xCaxMnO3 increases gradually with increasing the calcium ion content. When x ≥ 0.5, there is neither the oxygen excess nor the lanthanum deficiency in the compound. The tolerance factor of La 1-xCaxMnO3 is calculated and no anomaly in the variation of tolerance factor of La1-xCaxMnO3 with x is found. The catalysis activity of La1-xCa xMnO3 for NOy reduction by C3H 6 varies with x and there is a minimum in the variation of the largest conversion efficiency for NOy reduction with the composition of La1-xCaxMnO3.",

keywords = "Catalytic property, Crystal structure, Lanthanum manganate, Tetravalent manganese ion, Tolerance factor",

author = "Zhong, \{G. Q.\} and H. Xiong and Jia, \{Y. Q.\}",

year = "2005",

month = may,

day = "15",

doi = "10.1016/j.matchemphys.2004.09.047",

language = "English",

volume = "91",

pages = "10--16",

number = "1",

}

TY - JOUR

T1 - Synthesis, crystal structure, relative content of the Mn4+ ion, tolerance factor and catalytic property of La1-xCa xMnO3 (x = 0.0-1.0)

AU - Zhong, G. Q.

AU - Xiong, H.

AU - Jia, Y. Q.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - The series compounds La1-xCaxMnO3 (x = 0.0-1.0) are synthesized by the wet chemical method. When x < 0.5, the crystal structure of La1-xCaxMnO3 belongs to cubic system, when x ≥ 0.5, that of La1-xCaxMnO 3 belongs to orthorhornbic system. The relative contents of the Mn4+ ion in the series compounds are determined by the chemical analysis methods. The relative content of the Mn4+ ion in La 1-xCaxMnO3 increases gradually with increasing the calcium ion content. When x ≥ 0.5, there is neither the oxygen excess nor the lanthanum deficiency in the compound. The tolerance factor of La 1-xCaxMnO3 is calculated and no anomaly in the variation of tolerance factor of La1-xCaxMnO3 with x is found. The catalysis activity of La1-xCa xMnO3 for NOy reduction by C3H 6 varies with x and there is a minimum in the variation of the largest conversion efficiency for NOy reduction with the composition of La1-xCaxMnO3.

AB - The series compounds La1-xCaxMnO3 (x = 0.0-1.0) are synthesized by the wet chemical method. When x < 0.5, the crystal structure of La1-xCaxMnO3 belongs to cubic system, when x ≥ 0.5, that of La1-xCaxMnO 3 belongs to orthorhornbic system. The relative contents of the Mn4+ ion in the series compounds are determined by the chemical analysis methods. The relative content of the Mn4+ ion in La 1-xCaxMnO3 increases gradually with increasing the calcium ion content. When x ≥ 0.5, there is neither the oxygen excess nor the lanthanum deficiency in the compound. The tolerance factor of La 1-xCaxMnO3 is calculated and no anomaly in the variation of tolerance factor of La1-xCaxMnO3 with x is found. The catalysis activity of La1-xCa xMnO3 for NOy reduction by C3H 6 varies with x and there is a minimum in the variation of the largest conversion efficiency for NOy reduction with the composition of La1-xCaxMnO3.

KW - Catalytic property

KW - Crystal structure

KW - Lanthanum manganate

KW - Tetravalent manganese ion

KW - Tolerance factor

UR - https://www.scopus.com/pages/publications/13444259699

U2 - 10.1016/j.matchemphys.2004.09.047

DO - 10.1016/j.matchemphys.2004.09.047

M3 - Article

AN - SCOPUS:13444259699

SN - 0254-0584

VL - 91

SP - 10

EP - 16

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Synthesis, crystal structure, relative content of the Mn⁴⁺ ion, tolerance factor and catalytic property of La_1-xCa _xMnO₃ (x = 0.0-1.0)

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this