Zinc stannate nanostructures for fast response gas sensors
Z.V. Shomakhov1, S.S. Nalimova2, B.Z. Shurdumov1, A.I. Maximov2, V.A. Moshnikov2
1 Kabardino- Balkarian State University
2 Saint Petersburg Electrotechnical University «LETI»
DOI: 10.26456/pcascnn/2022.14.726
Original article
Abstract: The possibilities of using zinc stannate nanostructures as sensitive elements of fast response gas sensors are considered, which are of great interest for use in a variety of applications from the detection of toxic substances to air quality monitoring or medical diagnostics. The synthesis of zinc stannate nanostructures was carried out by hydrothermal treatment of zinc stannate nanorods in a solution of potassium stannate and urea at different concentrations of precursors. The chemical composition of the sample surface was analyzed by X-ray photoelectron spectroscopy. It is shown that as a result of hydrothermal treatment, Sn4+ ions appear on the surface of zinc oxide nanorods. The study of gas-sensitive characteristics was carried out under the influence of isopropyl alcohol vapors at temperatures of 156°C and 310°C. It is shown that the maximum response at 310°C to 1000 ppm of isopropyl alcohol is 8,24. At the same time, the zinc stannate samples have a fast response of 23 s.
Keywords:
- Zamir V. Shomakhov – Ph. D., Docent, Electronics and Information Technologies Department, Kabardino- Balkarian State University
- Svetlana S. Nalimova – Ph. D., Docent, Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University «LETI»
- Beslan Z. Shurdumov – 2nd year student, Institute of Informatics, Electronics and Robotics, Kabardino- Balkarian State University
- Aleksandr I. Maximov – Ph. D., Docent of Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University «LETI»
- Vyacheslav A. Moshnikov – Dr. Sc., Professor, Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University «LETI»
Reference:
Shomakhov, Z.V. Zinc stannate nanostructures for fast response gas sensors / Z.V. Shomakhov, S.S. Nalimova, B.Z. Shurdumov, A.I. Maximov, V.A. Moshnikov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 726-735. DOI: 10.26456/pcascnn/2022.14.726. (In Russian).
Full article (in Russian): download PDF file
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