Showing papers by "S. Roth published in 2009"
TL;DR: In this paper, the use of carbon nanotubes (SWNT, MWNT, and aligned CNT) for low and intermediate temperature fuel cells has been investigated with thin film CNT/Pt-electrodes of (1 < d < 10 μm).
27 citations
TL;DR: In this article, free standing films of single-wall carbon nanotubes were irradiated with energetic N+ and C4+ ions, and the observed changes in the Raman line shape of the radial breathing mode and the G band of the irradiated samples were similar to those found for a thermally annealed sample.
Abstract: Free standing films of single-wall carbon nanotubes were irradiated with energetic N+ and C4+ ions. The observed changes in the Raman line shape of the radial breathing mode and the G band of the C4+ irradiated samples were similar to those found for a thermally annealed sample. We ascribe these changes to thermal desorption of volatile dopants from the initially doped nanotubes. A simple geometry of the experiment allows us to estimate the temperature rise by one-dimensional heat conductance equation. The calculation indicates that irradiation-mediated increase in temperature may account for the observed Raman spectra changes.
11 citations
25 Sep 2009