Abstract
2D carbon structures were prepared by carbonization of biopolymers (starch) via self-propagating high-temperature synthesis process. Electron microscopic, Raman spectroscopic, and X-ray diffraction examinations showed that the structure of the resultant particles corresponded to graphene nanoplatelets. Based on the Raman spectroscopy data, the average number of graphene layers in a graphene nanoplatelets particle was estimated at 2–5. The graphene nanoplatelets synthesized were applied as a support of a platinum-based catalyst (Speier’s catalyst). The resultant supported catalyst was successfully used in the hydrosilylation of 1-hexene with methyldichlorosilane and then separated from the reaction products and reused. The catalytic activity of the supported catalyst was maintained for 4 months.
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Notes
IUPAC defines graphene as “a single carbon layer of graphite structure, describing its nature by analogy of a polycyclic aromatic hydrocarbon of quasi-infinite size.” Two or more layers of graphene are referred to as multilayer graphene (few layer graphene, graphene nanoplatelets).
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ACKNOWLEDGMENTS
We are grateful to N.K. Skvortsov from St. Petersburg State Institute of Technology (Technical University) for useful discussion of the results of the hydrosilylation process.
Funding
This study was carried out within the framework of State thematic studies of the Ioffe Physicotechnical Institute (theme no. 0040-2014-0013, A.A. Voznyakovskii) and was financially supported by the Russian Foundation for Basic Research (project no. 18-29-24129mk, A.P. Voznyakovskii, A.Yu. Neverovskaya).
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Voznyakovskii, A.P., Neverovskaya, A.Y., Kalinin, A.V. et al. 2D Carbon-Supported Platinum Catalysts for Hydrosilylation Reactions. Russ J Gen Chem 90, 1944–1948 (2020). https://doi.org/10.1134/S1070363220100163
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DOI: https://doi.org/10.1134/S1070363220100163