1. General Strategy at Sussex
Produce and study the structure of nanotubes and associated catalytic particles
Deduce fundamental information about nanotube formation mechanism from these observations

2. Nicole Grobert Hsu Wen-Kuang
Mauricio Terrones Zhu Yan-Qiu
Tony Cheetham Morinobu Endo
Humberto Terrones David Walton

4. Ta-B-N crystalline catalytic particle
Amorphous BN material
Enters into the crystalline phase

5. Ta-B-N crystalline catalytic particle
Segregation zone

6. Ta-B-N crystalline catalytic particle
Inflation zone

7. Ta-B-N crystalline catalytic particle
3-wall BN nanotube

8. BN nanotube and Ta/B/N catalytic particle

9. The layers of the nanotube are connected to layers in the crystal

11. BN nanotube and Ta/B/N catalytic particle

15. BN nanotube produced in an arc using a BN/Ta cathode

16. The catalytic particle

17. The catalytic particle is crystalline

33. Ta/B/N crystalline catalytic particles
BN nanotubes