Nanocrystalline spinel zinc-substituted cobalt ferrite thick film an efficient ethanol sensor

被引：12

作者：

Powar, R. R. ^{[1
,8
]}

Parale, V. G. ^{[2
]}

Phadtare, V. D. ^{[2
]}

Wategaonkar, S. B. ^{[3
]}

Mane, R. K. ^{[4
]}

Gunjkar, J. L. ^{[5
]}

Patil, D. R. ^{[6
]}

Piste, P. B. ^{[7
]}

Park, H-H ^{[2
]}

Zambare, D. N. ^{[8
]}

机构：

[1] Sanjay Ghodawat Univ, Dept Chem, Atigre 416118, Maharashtra, India

[2] Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea

[3] Sanjay Ghodawat Polytech, Dept Chem, Atigre 416118, Maharashtra, India

[4] KRP Kanya Mahavidyalaya, Dept Chem, Uran Islampur 415409, Maharashtra, India

[5] DY Patil Educ Soc, Ctr Interdisciplinary Res, Kolhapur 416006, Maharashtra, India

[6] Rani Laximibai Mahavidyalaya, Bulk & Nanomat Res Lab, Dept Phys, Jalgaon 425111, Maharashtra, India

[7] Arts Sci & Commerce Coll Ramanandnagar, Dept Chem, Sangli 416308, Maharashtra, India

[8] Kisan Veer Mahavidyalaya, Dept Chem, Wai 412803, Maharashtra, India

来源：

MATERIALS TODAY CHEMISTRY | 2021年 / 22卷

基金：

新加坡国家研究基金会;

关键词：

Spinel ferrites; Flake-like morphology; Room temperature; Selectivity; Gas sensor; MAGNETIC-PROPERTIES; GAS SENSORS; ZNFE2O4; ANODE;

D O I：

10.1016/j.mtchem.2021.100607

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This study considered Zn-substituted cobalt ferrite (ZnxCo1-xFe2O4 (x = 0.0-1.0) (ZCF)) thick films structural, morphological, and electrical properties; and gas sensing performance. The ZCF thick film sensor was screen printed on a glass substrate and tested for different analyte gases, including H-2, H2S, CO2, Cl-2, NH3, LPG, and C2H5OH. We used X-ray photoelectron spectrometry to investigate composition, chemical state, iron/cobalt or zinc ratio, and cation distribution within Zn-substituted cobalt spinel ferrite tetrahedral and octahedral sites without impurities. FESEM and HR-TEM confirmed grain dimensions between 0.13 and 0.23 mu m and porous, nearly spherical to flake-like morphology for the ZCF samples. Sample DC resistivity reduced with increasing temperature, confirming semiconductor nature. Thick film ZCF composition achieved highest the gas response and selectivity to 100 ppm ethanol at room temperature (30 degrees C). Overall results confirmed that flake-like ZCF sensors could be effective ethanol gas sensors. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：12

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