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Materials 2017, 10(3), 258; doi:10.3390/ma10030258

Nanocomposite Based on Functionalized Gold Nanoparticles and Sulfonated Poly(ether ether ketone) Membranes: Synthesis and Characterization

1
Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
2
Department of Basic and Applied Sciences for Engineering, Sapienza University of Rome, Via A. Scarpa 14, 00161 Rome, Italy
3
Department of Sciences, and CISDiC, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
4
CNRS, CEA, INAC-SPrAM, University Grenoble Alpes, F-38000 Grenoble, France
*
Author to whom correspondence should be addressed.
Academic Editor: Walter Remo Caseri
Received: 26 November 2016 / Revised: 10 February 2017 / Accepted: 27 February 2017 / Published: 3 March 2017
(This article belongs to the Special Issue Noble Metal Nanoparticles)
View Full-Text   |   Download PDF [6878 KB, uploaded 3 March 2017]   |  

Abstract

Gold nanoparticles, capped by 3-mercapto propane sulfonate (Au-3MPS), were synthesized inside a swollen sulfonated poly(ether ether ketone) membrane (sPEEK). The formation of the Au-3MPS nanoparticles in the swollen sPEEK membrane was observed by spectroscopic and microscopic techniques. The nanocomposite containing the gold nanoparticles grown in the sPEEK membrane, showed the plasmon resonance λmax at about 520 nm, which remained stable over a testing period of three months. The size distribution of the nanoparticles was assessed, and the sPEEK membrane roughness, both before and after the synthesis of nanoparticles, was studied by AFM. The XPS measurements confirm Au-3MPS formation in the sPEEK membrane. Moreover, AFM experiments recorded in fluid allowed the production of images of the Au-3MPS@sPEEK composite in water at different pH levels, achieving a better understanding of the membrane behavior in a water environment; the dynamic hydration process of the Au-3MPS@sPEEK membrane was investigated. These preliminary results suggest that the newly developed nanocomposite membranes could be promising materials for fuel cell applications. View Full-Text
Keywords: gold nanoparticles; sulfonated poly(ether ether ketone) membranes; metal nanoparticles; proton exchange membranes; atomic force microscopy; fluid cell gold nanoparticles; sulfonated poly(ether ether ketone) membranes; metal nanoparticles; proton exchange membranes; atomic force microscopy; fluid cell
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Venditti, I.; Fontana, L.; Scaramuzzo, F.A.; Russo, M.V.; Battocchio, C.; Carlini, L.; Gonon, L.; Mareau, V.H.; Fratoddi, I. Nanocomposite Based on Functionalized Gold Nanoparticles and Sulfonated Poly(ether ether ketone) Membranes: Synthesis and Characterization. Materials 2017, 10, 258.

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