Preparation and characterization of hybrid nanopowder based on nanosilicon decorated with carbon nanostructures

Mussabek G. Zhylkybayeva N. Baktygerey S. Yermukhamed D. Taurbayev Y. Sadykov G. Zaderko A.N. Lisnyak V.V.
October 2023 Springer Science and Business Media Deutschland GmbH

Applied Nanoscience (Switzerland)
2023 #13 Issue 10 6709 - 6718 pp.

Hybrid nanopowder based on silicon nanoparticles (Si NPs) decorated with carbon NPs was prepared by high-temperature treatment of the oxidized surface of porous Si NPs impregnated with a carbonaceous precursor. The Si NPs decorated by carbon NPs and carbon nanostructures (CNs) were studied with TEM. The surface chemistry for hybrid NPs was characterized by the TPD MS method, and carboxyl, lactone, and phenol groups were found. The CNs and carbon NPs influence the electric response of a sandwich structure that was prepared using the hybrid NPs modified with palladium NPs and then was tested to measure the concentration of hydrogen in nitrogen-hydrogen gas mixtures. The sandwich structure showed reasonable stability of the electrical response, presumably due to the formation of a specific sensitive layer.

Decorating carbon NPs , Gas response , Porous silicon , Si NPs , Silicon and carbon hybrid NPs , TEM structure

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Institute of Information and Computational Technologies, Pushkina Str., 125, Almaty, 050010, Kazakhstan
Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, 050040, Kazakhstan
Corporation Science Park, Taras Shevchenko University of Kyiv, Volodymyrska Str., 60, Kyiv, 01033, Ukraine
Institute of High Technologies, Taras Shevchenko National University of Kyiv, Hlushkova Ave., 4g, Kyiv, 03022, Ukraine
Faculty of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Str., 64/13, Kyiv, 01601, Ukraine

Institute of Information and Computational Technologies
Al-Farabi Kazakh National University
Corporation Science Park
Institute of High Technologies
Faculty of Chemistry

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