High pressure-low temperature synthesis of new nanostructured compounds  

Roxana M. Piticescu 1Robert R. Piticescu 1Madalina L. Popescu 1Gérard M. Demazeau 2

1. National Institute for Nonferrous and Rare Metals (IMNR), 102 Biruintei Blvd., Pantelimon 077145, Romania
2. Institut de Chimie de la Matiere Condensée de Bordeaux, ICMCB - CNRS, 87 avenue du Dr Albert Schweitzer, Pessac 33608, France

Abstract

Mild thermodynamic conditions (in terms of pressure and temperature parameters) specific to hydrothermal or solvothermal reactions are able to initiate through chemical bounding directly from solutions new developments in inorganic and molecular chemistry. The enhanced reactivity at the solution/nuclei or inorganic/organic interfaces is one way able to improve chemical bounding between different species. Such chemical bonds can be used to produce in soft conditions nanostructured oxide compounds or hybrid inorganic/organic molecules. More over, the addition of external electric field is able to produce oriented grain growth deposition of thin films starting from these nanocomponds.

The paper presents the opportunities offered by the methods developed by our research group in obtaining different new materials. Examples presented are doped nanocrystalline zinc oxide – maleic acid copolymers with controlled nanostructure and electronic properties, hydroxyl apatite – polysaccharides and layered silicates-polymer compounds - calcium phosphate-polymer hybrids for tissue engineering and regenerative medicine.

Acknowledgment: Romanian Agency for Scientific Research for financial support in the frame of Research for Excellence contracts 46-ReteBdent, 69-SINAPS and 16-TECOREMED and COST D30 – High pressure Tuning of Materials.

 

 

Related papers
  1. Novel synthesis methods of Co-doped ZnO Nanopowders
  2. Soft chemical methods integration in developing new scaffolds for tissue engineering
  3. Synthesis of doped ZnO nanopowders in microwave hydrothermal reactors
  4. Synthesis of Al doped ZnO nanopowders and their enhanced luminescence
  5. New inorganic-organic hybrid materials with strong chemical bonding
  6. Combining microwave and pressure techniques for hydrothermal synthesis of ZnO and ZrO2 nanopowders doped with a range of metal ions
  7. Luminescence properties of zinc oxide nanopowders doped with Al ions obtained by the hydrothermal and vapour condensation methods.
  8. Microstructural analysis of ZnO powders with different concentrations of Al dopant obtained by means of hydrothermal synthesis
  9. Mapping dopants effects in the High pressure synthesis of nanostructured zinc oxide
  10. High pressure-low temperature synthesis of new nanostructured compounds
  11. Soft solution processes: application to hybrid nanostructured materials
  12. Zirconia-based nanomaterials for oxygen sensor - generation, characterisation and optical properties
  13. Cathodoluminescence of Al doped ZnO nanopowders
  14. Morphology of Al doped Zinc Oxide Obtained using Hydrothermal and Vapour Condensation Methods
  15. Hydrothermal synthesis of doped oxide nanomaterials: a review
  16. Morphology of Al doped zinc oxide obtained by the vapour condensation method
  17. Development of Materials Chemistry under High Pressures
  18. SOLVOTHERMAL REACTIONS IN MATERIALS CHEMISTRY
  19. Morphology of Al-Doped Zinc Oxide Obtained by the Vapour Condensation Methods
  20. Hydrothermal synthesis: opportunities for technology transfer in advanced materials
  21. Hydrothermal synhtesis of inorganic/organic hybrid nanomaterials
  22. New routes for the synthesis of Al-doped ZnO transparent nanomaterials
  23. Synthesis of Al-doped ZnO nanomaterials with controlled luminescence properties
  24. Hydrothermal synthesis of nanomaterials: bringing materials closer to life
  25. Biocompatibility of thin films based on hydrothermal synthesized HAp
  26. Hybrid HAp- maleic anhydride copolymer nanocomposites obtained by in situ functionalisation
  27. HYDROTHERMAL SYNTHESIS OF NANOSTRUCTURED ZIRCONIA MATERIALS: PRESENT STATE AND FUTURE PROSPECTS
  28. Zirconia pressure sensors: from nanopowders to device
  29. New hydroxyapatite based nanomaterials for potential use in medical fields
  30. Modelling Hydrothermal Synthesis of Ceramic Composite Nanomaterials
  31. Modelling Hydrothermal Synthesis of Ceramic Composite Nanomaterials

Presentation: Oral at E-MRS Fall Meeting 2007, Cost D30 Meeting, by Madalina L. Popescu
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-09-13 13:25
Revised:   2009-06-07 00:44