2008 NOV 3 - (VerticalNews.com) -- According to a study from San Luis Potosi, Mexico, "We report an efficient method for anchoring Pt clusters (e.g., 6 nm in size) on the surfaces of N-doped multi-walled carbon nanotubes (MWNTs-CNx) using a relatively simple method consisting of a hydrothermal treatment of Na-2[PtCl6] center dot 6H(2)O and N-doped nanotubes dispersed in acetic acid."

  "The catalytic properties of this material were evaluated finding that the conversion of cinnamaldehyde using Pt-coated MWNTs-CNx could increase up to 6 times with respect to that obtained for uncoated MWNTs-CNx and pure carbon CNTs," wrote X. Lepro and colleagues ...read more

  2008 NOV 3 - (VerticalNews.com) -- 'An existing model [L. Bellarosa, E. Bakalis, M. Melle-Franco, F. Zerbetto, Nano Lett. 6 (2006) 1950] predicts that the structures of the seven double-wall carbon nanotubes, DWCNTs, identified by high-resolution transmission electron microscopy [L. Guan, K. Suenaga, S. Iijima, Nano Lett. 8 (2008) 459] are the most stable. Since the samples were obtained from single-wall carbon nanotubes, SWCNTs, filled with ferrocene molecules that were annealed at 1273 K for 24 h, it is concluded that under proper conditions the host SWCNT patterns the formation of the inner one to form the most stable pair ...read more

  2008 NOV 3 - (VerticalNews.com) -- According to recent research from Tsukuba, Japan, "The accurate size determination of nanoparticles in solution is an important subject in nano/bio-technologies. However, interactions between particles induce a significant misinterpretation of the size determination by PFG-NMR method."

  "In the sodium dodecyl sulfate (SDS) aqueous solution, we observed the significant change of the apparent size of PS-latex that depended on the concentration of SDS. In this Letter, accurate size determination of PS latex was carried out by extrapolation methods varying both the concentrations of the PS latex and the SDS in aqueous solution," wrote H. Kato and colleagues ...read more