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Nanocomposite Based on Functionalized Gold Nanoparticles and Sulfonated Poly(ether ether ketone) Membranes: Synthesis
Iole Venditti1, Laura Fontana2, Francesca A Scaramuzzo3
1Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy. iole.venditti@uniroma1.it.
Materials (Basel, Switzerland)
|August 5, 2017
Summary
Gold nanoparticles capped by 3-mercapto propane sulfonate were synthesized within sulfonated poly(ether ether ketone) membranes. These gold-3-mercapto propane sulfonate nanocomposites show stable plasmon resonance, suggesting potential for fuel cell applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Sulfonated poly(ether ether ketone) (sPEEK) membranes are crucial for fuel cell technology.
- Controlling nanoparticle synthesis within membranes is key to enhancing material properties.
Purpose of the Study:
- To synthesize gold nanoparticles capped by 3-mercapto propane sulfonate (Au-3MPS) within an sPEEK membrane.
- To characterize the resulting Au-3MPS@sPEEK nanocomposite and evaluate its stability and behavior in aqueous environments.
- To explore the potential of these nanocomposites for fuel cell applications.
Main Methods:
- Synthesis of Au-3MPS nanoparticles within a swollen sPEEK membrane.
- Spectroscopic and microscopic techniques (UV-Vis, AFM, XPS) for characterization.
- In-fluid AFM imaging to study membrane behavior at different pH levels.
Main Results:
- Successful synthesis of Au-3MPS nanoparticles within the sPEEK membrane confirmed by XPS.
- The Au-3MPS@sPEEK nanocomposite exhibited stable plasmon resonance at ~520 nm for three months.
- AFM studies revealed membrane roughness and dynamic hydration behavior in water across various pH values.
Conclusions:
- The developed Au-3MPS@sPEEK nanocomposite membranes demonstrate stable optical properties.
- The ability to study membrane behavior in fluid provides insights into their performance in aqueous environments.
- These nanocomposite membranes show promise as advanced materials for future fuel cell technologies.
