1 / 13

BN AND BCN NANOTUBES

BN AND BCN NANOTUBES. FLORIAN HASI Inst.f.Materialphysik Univ. Wien. WHAT ARE BN NANOTUBES. BN sheet. BN nanotube. L.Wirtz et al. METHODS TO PRODUCE BN TUBES. Multi -wall nanotubes. 1 .- ARC DISCHARGE. (Chopra et. al. 1995). 2.-. LASER ABLATION. ( Golberg,Bando et al.1996).

harvey
Download Presentation

BN AND BCN NANOTUBES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. BN AND BCN NANOTUBES FLORIAN HASI Inst.f.Materialphysik Univ. Wien

  2. WHAT ARE BN NANOTUBES BN sheet BN nanotube L.Wirtz et al.

  3. METHODS TO PRODUCE BNTUBES Multi -wall nanotubes 1.-ARC DISCHARGE (Chopra et. al. 1995) 2.- LASER ABLATION (Golberg,Bando et al.1996)

  4. 200 nm 5 nm TEM images from BN tubes produced with Arc discharge method (L.Wirtz.France 2001)

  5. METHODS TO PRODUCE BN TUBES Multi -wall nanotubes 1.-ARC DISCHARGE (Chopra et. al. 1995) LASER ABLATION (Golberg,Bando et al.1996) 2.- Single- wall nanotubes 1.-SUBSTITION REACTION (Han,Bando,Kurashima,Sato.1998)

  6. SUBSTITUTION REACTION B2O3 + 3C(nanotubes) + N2 2BN(nanotubes) + 3CO SWCNT BCNT BNT

  7. SAMPLE(B2O3+SWCNT) 1200-1300°C

  8. MIR SPECTRA OF THERESULTINGMATERIAL 1200°, 2h, N2

  9. STARTING MATERIAL MIR SPECTRA OF SWCNT (HiPco samples) Small dipol Moment Low IR activity

  10. STARTING MATERIAL MIR spectra of B2O3

  11. MIRSPECTRA FROM THESTARTING AND THE RESULTINGMATERIAL 1300°C 1200°C B2O3

  12. INFRARED ABSORPTION OF THE RESULTING MATERIAL 1200°C PRESENT WORK L.WIRTZ et al.

  13. CONCLUSIONS A new material is produced 1- MIR spectra correspond to literature results 2- Different starting nanotubes and systematic study needed 3-

More Related