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Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
Synthesis of platinum nanowheels using a bicellar template
Yujiang Song1, Rachel M Dorin, Robert M Garcia
1Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, New Mexico 87106, USA. ysong@sandia.gov
Journal of the American Chemical Society
|August 30, 2008
Summary
Platinum nanowheels were synthesized using disk-like bicelles as a template. This method offers control over nanostructure formation for various materials.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Bicelles offer unique mesoporous environments for nanomaterial synthesis.
- Controlling nanoparticle morphology is crucial for advanced applications.
Purpose of the Study:
- To synthesize platinum nanowheels using bicelle templating.
- To investigate the influence of reaction parameters on platinum nanostructure formation.
Main Methods:
- Wet-chemical reduction of platinum(II) salt using ascorbic acid.
- Utilizing disk-like surfactant bicelles (CTAB/FC7) as soft templates.
- Characterization of platinum nanostructures and bicelle size evolution.
Main Results:
- Successfully synthesized platinum nanowheels (496 +/-55 nm diameter) with dendritic features.
- Observed bicelle size evolution upon addition of platinum complex and reducing agent.
- Demonstrated synthetic control by adjusting metal salt concentration, temperature, and surfactant concentration.
Conclusions:
- Confined growth within bicelles dictates platinum wheel morphology.
- Soft templates provide a versatile platform for complex nanostructure synthesis.
- This approach can be extended to synthesize diverse metal, alloy, and semiconductor nanostructures.
