钙钛矿型Ca1-xSrxMnO3的性质与特性

IF 0.7 4区材料科学 Q4 ELECTROCHEMISTRY

Journal of New Materials For Electrochemical Systems Pub Date : 2022-06-10 DOI:10.14447/jnmes.v25i2.a09

A. Guemache, A. Bouchelaghem, M. Drif, F. Kahoul, L. Hamzioui

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引用次数: 1

摘要

采用共沉淀法合成了Ca1-xSrxMnO3 (x = 0,0.1, 0.2)纳米颗粒。结构分析表明MnO4存在八面体配位。MnO4的傅里叶变换红外光谱(FTIR)显示在590 cm-1附近出现O-Mn-O振动模式。XRD分析表明，样品为菱面体晶格。通过差示和热重分析，得到组分x=0.1的曲线，在600℃时具有明显的纯相。采用循环伏安法(CV)和阻抗谱法(EIS)对其电化学行为进行了研究。结果表明，随着锶浓度的增加，表观电化学活性有所提高。这是由于锶的粒度效应。

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Properties and Characteristic of Perovskite Type Ca1-xSrxMnO3

Ca1-xSrxMnO3 (x = 0, 0.1, 0.2) nanoparticules were synthesized by the co- precipitation method. The structural analysis reveals the presence of Octahedral coordination of MnO4. Fourier transform infrared spectroscopy (FTIR) spectra of MnO4 show the occurrence of O-Mn-O vibrational mode at around 590 cm-1. The XRD indicates that the samples are Rhombohedral lattice. The differential and thermo gravimetric analysis, curve obtained from the composition x=0.1,it has distinct pure phase at 600°C. The study of electrochemical behavior was carried out by cyclic Voltammetry (CV) and impedance spectroscopy (EIS).Show that the apparent electrochemical activity improves by increasing the strontium concentration. This is due to the particle size effect of strontium.

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来源期刊

Journal of New Materials For Electrochemical Systems ELECTROCHEMISTRY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： This international Journal is intended for the publication of original work, both analytical and experimental, and of reviews and commercial aspects related to the field of New Materials for Electrochemical Systems. The emphasis will be on research both of a fundamental and an applied nature in various aspects of the development of new materials in electrochemical systems.