Fluorinated graphene nanoribbons from unzipped single-walled carbon nanotubes for ultrahigh energy density lithium-fluorinated carbon batteries

Cutting Fluorinated/Ozonated Single-Walled Carbon Nanotubes by Pyrolysis

Pyrolysis and/or piranha treatment of fluorinated /ozonated single-walled carbon nanotubes (SWNTs) were found to have cut the nanotubes to short length (~100nm). Pyrolysis of partially fluorinated SWNTs (~C5F) at 700°C cut the nanotubes without causing significant crosslinking among the SWNTs. When pyrolyzed at lower temperatures, the fluorinated SWNTs need room temperature piranha treatment to...

Synthesis and characterization of fluorinated carbon nanotubes for lithium primary batteries with high power density.

The synthesis and characterization of fluorinated carbon nanotubes have been carried out under an inert gas containing fluorine. All of the samples have been characterized by x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), solid-state nuclear magnetic resonance ((13)C and (19)F ss-NMR) and transmission electron microscopy (TEM) techniques. The comparison of the effects ...

High-Power-Density, High-Energy-Density Fluorinated Graphene for Primary Lithium Batteries

Li/CFx is one of the highest-energy-density primary batteries; however, poor rate capability hinders its practical applications in high-power devices. Here we report a preparation of fluorinated graphene (GFx) with superior performance through a direct gas fluorination method. We find that the so-called "semi-ionic" C-F bond content in all C-F bonds presents a more critical impact on rate perfo...

Width dependent edge distribution of graphene nanoribbons unzipped from multiwall carbon nanotubes

Solid-State NMR Analysis of Fluorinated Single-Walled Carbon Nanotubes: Assessing the Extent of Fluorination

Chemistry of Materials is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Article Solid-State NMR Analysis of Fluorinated Single-Walled Carbon Nanotubes: Assessing the Extent of Fluorination Lawrence B. Alemany, Lei Zhang, Liling Zeng, Christopher L. Edwards, and Andrew R. Barron Chem. Mater., 2007, 19 (4), 735-744 • DOI: 10.1021/cm0618906 Downloaded...