In-situdiagnostics of hydrocarbon dusty plasmas using quantum cascade laser absorption spectroscopy and mass spectrometry
| Autor: | J Röpcke, Khaled Hassouni, L. Colina Delacqua, Karim Ouaras, Guillaume Lombardi, Maxime Wartel, M. Redolfi, Xavier Bonnin |
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| Přispěvatelé: | Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Université Paris 13 (UP13)-Institut Galilée-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS), INP Greifswald, Universität Greifswald - University of Greifswald, Groupe de recherches sur l'énergétique des milieux ionisés (GREMI), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Physics Absorption spectroscopy Infrared [SPI.PLASMA]Engineering Sciences [physics]/Plasmas Analytical chemistry Plasma Condensed Matter Physics Mass spectrometry Ion law.invention Hydrocarbon chemistry Physics::Plasma Physics [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 13. Climate action law [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic Atomic physics Absorption (chemistry) Quantum cascade laser Astrophysics::Galaxy Astrophysics |
| Zdroj: | Journal of Plasma Physics Journal of Plasma Physics, Cambridge University Press (CUP), 2014, pp.1-9. ⟨10.1017/S0022377814000361⟩ |
| ISSN: | 1469-7807 0022-3778 |
| Popis: | The formation of carbon nanoparticles in low pressure magnetized H2/CH4and H2/C2H2plasmas is investigated using infrared quantum cascade laser absorption, mass spectrometry, and electrostatic probe measurements. Results showed that dust formation is correlated to the presence of a significant amount of large positively charged hydrocarbon ions. Large negative ions or neutral hydrocarbon were not observed. These results, along with a qualitative comparison of diffusion and reaction characteristic, suggest that a positive ion may contribute to the growth of nanoparticles in hydrocarbon magnetized plasmas. |
| Databáze: | OpenAIRE |
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