CuMn2O4尖晶石化合物的合成及结构和电性能表征

Q4 Multidisciplinary

Scientific Journal of King Faisal University Pub Date : 2021-01-01 DOI:10.37575/b/sci/210028

R. Yousef, Alaa Nassif, Abla Al-Zoubi, N. Al-Din

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引用次数: 1

摘要

采用固态法合成了CuMn2O4。以二氧化锰和氧化铜为前驱体。最佳合成温度为850℃。XRD结果表明，所制备的化合物具有立方结构，具有Fd3′m空间基。晶格常数为a=8.359Å，晶胞体积为V=584.14A°3。采用Debye-Scherrer法计算得到850℃退火后的CuMn2O4晶粒尺寸为33.49 nm。计算了实验密度，并与理论密度进行了比较。ρt= 5.399 gr/cm3， ρE = 5.24 gr/cm3。该化合物的电学性质表明其具有半导体性质，其活化能为0.1535 eV。关键词活化能，铜锰矿，混合氧化物，固相反应，尖晶石

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Synthesis and Characterisation of Structural and Electrical Properties of CuMn2O4 Spinel Compound

CuMn2O4 was synthesized by the solid-state method. MnO2 and CuO were used as precursors. The optimum temperature of synthesis was 850°C. XRD results showed that the prepared compound had a cubic structure with Fd3 ̅m space group. The lattice constant and unit cell volume were a=8.359Å and V=584.14A°3 respectively. The grain size was calculated by the Debye-Scherrer method and was 33.49 nm for CuMn2O4 annealed at 850°C. The experimental density was calculated and compared to the theoretical density. The results were ρt= 5.399 gr/cm3 and ρE = 5.24 gr/cm3. The electrical properties of the compound showed that it behaves like a semiconductor, and the activation energy of the compound was 0.1535 eV. KEYWORDS Activation energy, copper manganite (CuMO), mixed oxide, solid-state reaction, spinel

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来源期刊

Scientific Journal of King Faisal University Multidisciplinary-Multidisciplinary

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： The scientific Journal of King Faisal University is a biannual refereed scientific journal issued under the guidance of the University Scientific Council. The journal also publishes special and supplementary issues when needed. The first volume was published on 1420H-2000G. The journal publishes two separate issues: Humanities and Management Sciences issue, classified in the Arab Impact Factor index, and Basic and Applied Sciences issue, on June and December, and indexed in (CABI) and (SCOPUS) international databases.