Содержание
- 2. INTRODUCTION Nanotechnology was born as a science very recently. It is one of the greatest discoveries
- 3. INTRODUCTION Advances for the industry: Materials with new properties not developed until now. Stronger materials than
- 4. INTRODUCTION Richard Feynman was the first to refer the possibilities of nanoscience when in 1959 he
- 5. OBJECTIVES To explain formation and development of Nanochemistry. To give an overview about Nanoparticle as a
- 6. OUTLINE Introduction. Formation and development of Nanochemistry. Nanoparticle as a structural unit of new substances. Classification
- 7. Formation and development of Nanochemistry Nanoscience: study of phenomena and manipulation of materials at atomic, molecular
- 8. Formation and development of Nanochemistry Nanoparticles can be defined as particles with at least one of
- 9. Classification of nanoparticles The US Environmental Agency: Carbon based materials: with spherical, ellipsoidal or tubular forms.
- 10. Classification of nanoparticles The US Environmental Agency: Dendrimers: are highly branched macromolecules with the dimensions nanometer-scale.
- 11. Classification of nanoparticles The US Environmental Agency: 4. Composites: Nanocomposite can be described as a multiphase
- 12. Classification of nanoparticles Typical examples of various nanoparticles: Composition Nanoparticles Pure metal Au, Ag, Pd, Pt,
- 13. Classification of nanoparticles Different shapes of nanoparticles : sphere prism cube tetrapod
- 14. Classification of nanoparticles Examples of tube-type nanoparticles: Carbon nanotubes
- 15. Classification of nanoparticles Examples of hollow sphere nanoparticles: Fullerenes
- 16. Classification of nanoparticles Different nanoparticles according to the spatial dimensions:
- 17. Classification of nanoparticles Different nanoparticles according to the spatial dimensions: Zero dimensional(0-D): These nanomaterials have Nano-dimensions
- 18. Classification of nanoparticles Different nanoparticles according to the spatial dimensions: Two dimensional(2-D): In this type of
- 19. Properties of nanoparticles The causes of these behavioral differences in their properties are mainly two: The
- 20. Properties of nanoparticles Variation of the surface area 13 atoms (12 on the surface) 92% 55
- 21. Properties of nanoparticles Physical properties: The melting point Electrical and thermal conductivity Chemical properties Mechanical properties:
- 22. Conclusions A nanomaterial differs from a conventional polycrystalline material not only because of the size of
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