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

R. R. Powar; V. G. Parale; V. D. Phadtare; S. B. Wategaonkar; R. K. Mane; J. L. Gunjkar; D. R. Patil; P. B. Piste; H. H. Park; D. N. Zambare

doi:10.1016/j.mtchem.2021.100607

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

R. R. Powar, V. G. Parale, V. D. Phadtare, S. B. Wategaonkar, R. K. Mane, J. L. Gunjkar, D. R. Patil, P. B. Piste, H. H. Park, D. N. Zambare

Department of Materials Science and Engineering

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

8 Citations (Scopus)

Abstract

This study considered Zn-substituted cobalt ferrite (Zn_xCo_1-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 H₂, H₂S, CO₂, Cl₂, 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 μm 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 °C). Overall results confirmed that flake-like ZCF sensors could be effective ethanol gas sensors.

Original language	English
Article number	100607
Journal	Materials Today Chemistry
Volume	22
DOIs	https://doi.org/10.1016/j.mtchem.2021.100607
Publication status	Published - 2021 Dec

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Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Catalysis
Electronic, Optical and Magnetic Materials
Biomaterials
Polymers and Plastics
Colloid and Surface Chemistry
Materials Chemistry

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10.1016/j.mtchem.2021.100607

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title = "Nanocrystalline spinel zinc-substituted cobalt ferrite thick film an efficient ethanol sensor",

abstract = "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 H2, H2S, CO2, Cl2, 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 μm 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 °C). Overall results confirmed that flake-like ZCF sensors could be effective ethanol gas sensors.",

author = "Powar, {R. R.} and Parale, {V. G.} and Phadtare, {V. D.} and Wategaonkar, {S. B.} and Mane, {R. K.} and Gunjkar, {J. L.} and Patil, {D. R.} and Piste, {P. B.} and Park, {H. H.} and Zambare, {D. N.}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

doi = "10.1016/j.mtchem.2021.100607",

language = "English",

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AU - Powar, R. R.

AU - Parale, V. G.

AU - Phadtare, V. D.

AU - Wategaonkar, S. B.

AU - Mane, R. K.

AU - Gunjkar, J. L.

AU - Patil, D. R.

AU - Piste, P. B.

AU - Park, H. H.

AU - Zambare, D. N.

PY - 2021/12

Y1 - 2021/12

N2 - 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 H2, H2S, CO2, Cl2, 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 μm 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 °C). Overall results confirmed that flake-like ZCF sensors could be effective ethanol gas sensors.

AB - 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 H2, H2S, CO2, Cl2, 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 μm 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 °C). Overall results confirmed that flake-like ZCF sensors could be effective ethanol gas sensors.

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

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