TOMAN, Jozef, Miroslav ŠNÍRER, R. RINCÓN, Ondřej JAŠEK, Dalibor VŠIANSKÝ, A.M. RAYA, F.J. MORALES-CALERO, J. MUÑOZ a M.D. CALZADA. On the gas-phase graphene nanosheet synthesis in atmospheric microwave plasma torch: Upscaling potential and graphene nanosheet‑copper nanocomposite oxidation resistance. Fuel Processing Technology. Elsevier B.V, roč. 239, January, s. 1-13. ISSN 0378-3820. doi:10.1016/j.fuproc.2022.107534. 2023.
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Základní údaje
Originální název On the gas-phase graphene nanosheet synthesis in atmospheric microwave plasma torch: Upscaling potential and graphene nanosheet‑copper nanocomposite oxidation resistance
Autoři TOMAN, Jozef (703 Slovensko, domácí), Miroslav ŠNÍRER (703 Slovensko, domácí), R. RINCÓN (garant), Ondřej JAŠEK (203 Česká republika, domácí), Dalibor VŠIANSKÝ (203 Česká republika, domácí), A.M. RAYA, F.J. MORALES-CALERO, J. MUÑOZ a M.D. CALZADA.
Vydání Fuel Processing Technology, Elsevier B.V, 2023, 0378-3820.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10305 Fluids and plasma physics
Stát vydavatele Nizozemské království
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 7.500 v roce 2022
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.1016/j.fuproc.2022.107534
UT WoS 000936126900004
Klíčová slova anglicky Graphene nanosheets; Microwave plasma; Atmospheric pressure; Ethanol; Production rate
Štítky rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 22. 2. 2024 09:44.
Anotace
Efficient gas-phase synthesis of few-layer graphene nanosheets (GNS) is based on the controlled formation of the high-temperature environment and the reaction pathway of gas-phase species formed by the decomposition of organic precursors. Such a process results in the formation of high-quality carbon nanomaterial and hydrogen while the concentration of other gaseous by-products is minimized. In this work, the main factors affecting the efficiency of such processes in the TIAGO microwave plasma torch were investigated using detailed material analysis and mass spectrometry of the gas-phase products during the synthesis process. The results showed a limiting effect of increasing the microwave power (MW) on both the product yield as well as material quality, as shown by Raman and x-Ray photoelectron spectroscopy. The change in the reaction pathway increased the formation of C2H4, resulting in the upper limit of the achievable nanopowder yield. The prepared material showed a decrease in its high oxidation resistance, with increasing the delivered MW power as determined by thermogravimetry analysis. This behavior was related to the formation of GNS-Cu nanoparticles composite due to the presence of copper nanoparticles originating from erosion of the electrode of the TIAGO torch during the synthesis process at high MW powers.
Návaznosti
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VytisknoutZobrazeno: 28. 3. 2024 18:31