1. Derivatization of Carbon Nanotubes by the ZnO and ZnS nanoparticles
Jerzy (George) Peszke
Jan Dlugosz University, Czestochowa, Poland
Leszek Stobinski
Polish Academy of Science, Warsaw, Poland
Hong – Ming Lin
Tatung University, Taipei, Taiwan

2. Structures of Carbon Nanotubes
SWNTs can be formed by rolling the graphene sheet along lattice vectors

3. Structures of Carbon Nanotubes
Empty channel
Well aligned MWCNTs
Caps of MWCNTs
MWCNTs Bamboo like
Bundled SWCNTs

4. Physical Properties of Carbon Nanotubes
HOMO-LUMO Gap:
For (n, m); n-m is divisible by 3 [Metallic CNTs] eV
For (n, m); n-m is not divisible by 3 [Semiconducting CNTs] < 1 eV
Electrical Transport
Conductance Quantization (kW)-1
Resistivity W*cm
Maximum Current Density A/m2
Maximum Current Transmission GA/cm3
(copper wire ~1000 less)
Field emission on distance 1000 nm V
(molybdenum electrode on the same distance V)
Thermal Transport
Thermal Conductivity ~ 2000 W/m/K
Phonon Mean Free Path ~ 100 nm
Relaxation Time ~ s
Elastic Behaviour
Young's Modulus (SWNT) ~ 1 TPa
Young's Modulus (MWNT) TPa
(70 GPa for aluminium and 700 GPa for C-fibber)
Maximum Tensile Strength ~ 100 GPa
(the high-grades steel are broken on ~2GPa)

5. Chemical Properties of Carbon Nanotubes

6. Chemical Modification Carbon Nanotubes

7. Chemical Modification Carbon Nanotubes
CdSe / ZnS QD – about 700 atoms
Carbon Nanotubes modified by QDs via aminomorpholine

8. Carbon Nanotubes Modification

9. ZnS bonded with Carbon Nanotubes
MWCNTS bonded with ZnS through dodecylamine linker

10. ZnS bonded with Carbon Nanotubes
ZnS bonded with MWCNTs through 2-aminoethylthiol linker

11. ZnS bonded with Carbon Nanotubes
ZnS bonded with MWCNTs through 2-aminoethylmorpholine linker

12. ZnS bonded with Carbon Nanotubes
MWCNTS – COOH with ZnS nanoparticle
(MWCNTS – COOH – QD model)

13. Carbon nanotubes complexes with ZnS
EDX spectra of complexes MWCNTS with ZnS
TEM images of complexes MWCNTS with ZnS

14. Carbon nanotubes complexes with ZnO
Raman spectra of complexes MWCNTS-COOH/ZnO (high concentration of ZnO)
EDX spectra of complexes MWCNTS with ZnO (low concentration of ZnO)
TEM images of complexes MWCNTS with ZnO (high concentration of ZnO)

15. Conclusions
Physico-chemical properties of CNTs are determined by their structure and purity
Modifications of the CNTs geometry by attaching different chemical functional groups to CNTs can change their physical-chemical properties
Modified CNTs are very promising starting material for synthesis of new nano-materials (also as templates)
Designing of new nano-materials also requires their structure modification
XIXth century – century of water vapor, XXth century – century of silicon,
XXIth century – century of nano-materials

16. Thank you for attention