V. Golovakhin, A. A. Shishin, A. D. Lozben’, A. R. Smagulova, M. A. Danilenko, T. S. Gudyma, A. G. Bannov
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Abstract
The high-temperature treatment of nanofibrous carbon, carried out at 2600°C (in the absence of air), is investigated. The obtained samples are studied using thermal analysis, transmission electron microscopy, and Raman spectroscopy. The carbon samples are tested as active material in gas sensors for the detection of nitrogen dioxide. It is shown for the first time that heat treatment of nanofibrous carbon leads to a sharp increase in sensitivity by ~5 times at 1 ppm NO2 relative to the initial sample. Unlike other treatment methods, heating to high temperatures in the absence of air leads to an increase in the degree of graphitization, formation of the well-ordered structure of nanofibers, the removal of catalyst residues, and an increase in the functional characteristics of the sensors.
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Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.
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