SSU scientists participated in the development of sensor technology for detecting traces of organic compounds in the air

The Journal of Materials Chemistry A published an article "Quasi-2D Co3O4 nanoflakes as an efficient gas sensor versus alcohol VOCs", which presents a new technology for creating sensors to detect traces of organic compounds in the air. Representatives of Saratov University, Skolkovo Institute of science and technology, Leibniz Institute of solid state and materials research (Dresden, Germany), Aalto University (Aato, Finland), Karlsruhe Institute of Technology (Karlsruhe, Germany) took part in the development of the technology. Karlsruhe, Germany), the Moscow Institute of physics and technology, the I. M. Sechenov First Moscow state medical University, the Saratov branch Of the V. A. Kotelnikov Institute of radio engineering and electronics of the Russian Academy of Sciences, and the Saratov state technical University.

According to one of the co-authors of the article, F. S. Fedorov from the Skolkovo Institute of science and technology, the developed technology allows creating sensors for detecting traces of organic compounds, such as alcohols, in the air. Within the framework of the proposed technology, the sensor's sensitive material - 2D nanocoils of cobalt oxide-are grown directly on the sensor's electrodes, which allows to significantly simplify the technological process. These sensors are chemoresistive, i.e. the resistance of the sensitive material changes when organic matter molecules are adsorbed. The paper shows that such a sensor has an exceptionally high sensitivity, good stability and a very low detection limit. In addition, scientists have established a relationship between the value of the sensory response and the molecular weight of homologous alcohols, which was confirmed by quantum mechanical calculations carried out by the scientific group of Professor Olga Glukhova.

The Journal of Materials Chemistry A is published by the Royal Society of Chemistry and is one of the most respected scientific publications in its category according to Web of Science. Its impact factor is 10.733.
Article output: Fedor Fedorov, Maksim A. Solomatin, Margitta Uhlemann, Steffen Oswald, Dmitry A. Kolosov, Anatolii Morozov, Alexey S. Varezhnikov, Maksim A. Ivanov, Artem Grebenko, Martin Sommer, Olga E. Glukhova, Albert G. Nasibulin and Victor Sysoev Quasi-2D Co3O4 Nanoflakes as Efficient Gas Sensor versus Alcohol VOCs // Journal of Materials Chemistry A. 2020. Vol. 8. Iss. 15. P. 7214–7228. DOI: 10.1039 / D0TA00511H

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