| EPSRC Reference: |
EP/I009213/1 |
| Title: |
Seed-induced penetration: a new tool for the synthesis of core-shell nanoparticles using superfluid helium droplets |
| Principal Investigator: |
Yang, Dr S |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Chemistry |
| Organisation: |
University of Leicester |
| Scheme: |
Standard Research |
| Starts: |
01 December 2010 |
Ends: |
30 November 2014 |
Value (£): |
813,759
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| EPSRC Research Topic Classifications: |
| Chemical Structure |
Gas & Solution Phase Reactions |
| Materials Characterisation |
Materials Synthesis & Growth |
| Scattering & Spectroscopy |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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| Related Grants: |
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| Panel History: |
| Panel Date | Panel Name | Outcome |
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07 Jul 2010
|
Physical Sciences Panel - Chemistry
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Announced
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Summary on Grant Application Form |
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Helium nanodroplets are very small drops of liquid helium, with diameters at 1/1000 ~ 1/100,000 of a human hair. They are extremely cold, with a temperature as low as 0.38 K. When molecules and atoms encounter helium droplets, they will be captured, and in most cases, migrate to the interior of helium droplets. Helium droplets are superfluid, and the bonding between helium atoms and the dopants are often very weak. Therefore, when more than one atom or molecule are picked up, molecular clusters will be formed. When more dopants are added to helium droplets molecule by molecule, or atom by atom, and different materials are added in sequence, core-shell nanoparticles (the nano-onions ), will be formed. Core-shell nanoparticles can have exotic properties depending on the size and compositions. The unique properties of helium droplets make it ideal for fabrication of nanoparticles because they allow almost any combination materials to be grown.However, not everything goes to the interior of helium droplets. For high-spin metal atoms, e.g., Na and K, they will reside on the surface of helium nanodroplets and will hinder the growth of sizeable nanoparticles using helium droplets. A seeding technique will be therefore introduced in this research to overcome this major difficulty for the formation of nanoparticles with high-spin metals. A number of core-shell and core-multiple shell nanoparticles will be synthesized which have potential for a number of applicatoins in material science, biomedical science, imaging and strorage devices.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.le.ac.uk |