Preparation of Self-doped La1-xMnO3+δ Polycrystalline by Electrochemical Deposition

被引：0

作者：

Huang, Yun-Hui ^{[1
]}

Wang, Zhe-Ming ^{[1
]}

Zhu, Tao ^{[1
]}

Chen, Xing ^{[1
]}

Liao, Chun-Sheng ^{[1
]}

Yan, Chun-Hua ^{[1
]}

机构：

[1] State Key Lab. Rare Earth Mat. C., PKU-HKU Jt. Lab. Rare Earth Mat. B., Peking University, Beijing 100871, China

来源：

| 2001年 / Higher Education Press卷 / 22期

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摘要：

The perovskite-type self-doped La1-x MnO3+δ was prepared by heat treatment of the gel precursor deposited on a Pt electrode in solutions containing both La3+ and Mn2+ ions using catholic reduction electrochemical method. The influence of molar ratio of La3+ and Mn2+ in solution, deposition potential and current density on product composition was investigated. Our results indicate that varying the ratio of La3+ and Mn2+ in solution, deposition potential or current density can conveniently control the product composition, lattice deficiencies and hence the self-doping level x. In addition, the transport properties are mainly influenced by Mn4+ content and ion vacancies for the self-doped manganites.

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