A Continuous One-Step Aerosol Method for Producing Core@Shell Cu@Ag Nanoparticles
(2019) European Aerosol Conference 2019- Abstract
- The synthesis of core@shell nanoparticles has predominantly been carried out by chemical methods or physical deposition of a shell material post-growth onto core particles. By combining immiscible materials that differ in surface energy, we demonstrate the spontaneous atomic rearrangement to monodisperse Cu@Ag core@shell particles directly in the aerosol phase, starting from pure Cu and Ag electrodes with the spark discharge generation (SDG) method. The morphology and crystallinity were investigated by SEM and HRTEM, and the composition was confirmed by STEM EDX, which indicated that the Ag shell acts as an oxidation barrier for the Cu core. The current material system may find applications in antibacterial coatings. The method presented... (More)
- The synthesis of core@shell nanoparticles has predominantly been carried out by chemical methods or physical deposition of a shell material post-growth onto core particles. By combining immiscible materials that differ in surface energy, we demonstrate the spontaneous atomic rearrangement to monodisperse Cu@Ag core@shell particles directly in the aerosol phase, starting from pure Cu and Ag electrodes with the spark discharge generation (SDG) method. The morphology and crystallinity were investigated by SEM and HRTEM, and the composition was confirmed by STEM EDX, which indicated that the Ag shell acts as an oxidation barrier for the Cu core. The current material system may find applications in antibacterial coatings. The method presented can be extended to other bimetallic systems with applications in catalysis, plasmonics and as seed-particles for nanowire growth. Owing to the simple, zero-waste and continuous production method, SDG is an ideal platform for such nanoparticle generation and investigation.
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Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/bb55f85a-f030-40d0-9f2b-4b06206637cd
- author
- Eom, Namsoon LU ; Snellman, Markus LU ; Ek, Martin LU ; Messing, Maria LU and Deppert, Knut LU
- organization
- publishing date
- 2019-08-25
- type
- Contribution to conference
- publication status
- published
- subject
- conference name
- European Aerosol Conference 2019
- conference location
- Gothenburg, Sweden
- conference dates
- 2019-08-25 - 2019-08-30
- project
- Aerosol Synthesis and Characterization of Heterogeneous Bimetallic Nanoparticles
- language
- English
- LU publication?
- yes
- id
- bb55f85a-f030-40d0-9f2b-4b06206637cd
- date added to LUP
- 2019-09-04 14:58:25
- date last changed
- 2022-04-05 14:58:35
@misc{bb55f85a-f030-40d0-9f2b-4b06206637cd, abstract = {{The synthesis of core@shell nanoparticles has predominantly been carried out by chemical methods or physical deposition of a shell material post-growth onto core particles. By combining immiscible materials that differ in surface energy, we demonstrate the spontaneous atomic rearrangement to monodisperse Cu@Ag core@shell particles directly in the aerosol phase, starting from pure Cu and Ag electrodes with the spark discharge generation (SDG) method. The morphology and crystallinity were investigated by SEM and HRTEM, and the composition was confirmed by STEM EDX, which indicated that the Ag shell acts as an oxidation barrier for the Cu core. The current material system may find applications in antibacterial coatings. The method presented can be extended to other bimetallic systems with applications in catalysis, plasmonics and as seed-particles for nanowire growth. Owing to the simple, zero-waste and continuous production method, SDG is an ideal platform for such nanoparticle generation and investigation.<br/>}}, author = {{Eom, Namsoon and Snellman, Markus and Ek, Martin and Messing, Maria and Deppert, Knut}}, language = {{eng}}, month = {{08}}, title = {{A Continuous One-Step Aerosol Method for Producing Core@Shell Cu@Ag Nanoparticles}}, year = {{2019}}, }