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Articles by Michael Keidar in JoVE
JoVE Bioengineering
Samtidig Syntes av Single vägg kolnanorör och grafen i ett magnetiskt utökad Arc Plasma
Department of Mechanical and Aerospace Engineering, The George Washington University
Anodiska båge ansvarsfrihet är en av de mest praktiska och effektiva metoder för att syntetisera olika kol nanostrukturer. För att öka bågen styrbarhet och flexibilitet, var en icke-enhetlig magnetfält införts för att bearbeta ett steg syntes av storskaliga grafen flingor och hög renhet enkel vägg kolnanorör.
Other articles by Michael Keidar on PubMed
Tailored Distribution of Single-wall Carbon Nanotubes from Arc Plasma Synthesis Using Magnetic Fields
We report a method for tuning the distribution of single-wall carbon nanotubes (SWCNTs) produced by the anodic arc production method via the application of nonuniform magnetic fields to the gap region during synthesis. Raman, ultraviolet-visible-near-infrared absorbance and near-infrared fluorescence spectroscopies were used to characterize samples together with scanning electron microscopy. Application of the nonuniform magnetic field 0.2-2 kG results in a broadening of the diameter range of SWCNTs produced toward decreased diameters, with substantial fractions of produced SWCNTs being of small diameter, less than ∼1.3 nm, at the highest field. The ability to tune production of the arc production method may allow for improvement in achievable SWCNT properties.
