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Membranes 2014, 4(1), 123-142; doi:10.3390/membranes4010123
Article

Preparation and Characterization of Nanocomposite Polymer Membranes Containing Functionalized SnO2 Additives

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Received: 1 August 2013; in revised form: 15 February 2014 / Accepted: 20 February 2014 / Published: 5 March 2014
(This article belongs to the Special Issue Advancements in Membranes for Electrochemical Energy Applications)
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Abstract: In the research of new nanocomposite proton-conducting membranes, SnO2 ceramic powders with surface functionalization have been synthesized and adopted as additives in Nafion-based polymer systems. Different synthetic routes have been explored to obtain suitable, nanometer-sized sulphated tin oxide particles. Structural and morphological characteristics, as well as surface and bulk properties of the obtained oxide powders, have been determined by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR) and Raman spectroscopies, N2 adsorption, and thermal gravimetric analysis (TGA). In addition, dynamic mechanical analysis (DMA), atomic force microscopy (AFM), thermal investigations, water uptake (WU) measurements, and ionic exchange capacity (IEC) tests have been used as characterization tools for the nanocomposite membranes. The nature of the tin oxide precursor, as well as the synthesis procedure, were found to play an important role in determining the morphology and the particle size distribution of the ceramic powder, this affecting the effective functionalization of the oxides. The incorporation of such particles, having sulphate groups on their surface, altered some peculiar properties of the resulting composite membrane, such as water content, thermo-mechanical, and morphological characteristics.
Keywords: functionalized metal oxides; nanocomposite polymer membranes; morphological; structural and spectroscopic characterizations; thermal and mechanical properties functionalized metal oxides; nanocomposite polymer membranes; morphological; structural and spectroscopic characterizations; thermal and mechanical properties
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.

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MDPI and ACS Style

Scipioni, R.; Gazzoli, D.; Teocoli, F.; Palumbo, O.; Paolone, A.; Ibris, N.; Brutti, S.; Navarra, M.A. Preparation and Characterization of Nanocomposite Polymer Membranes Containing Functionalized SnO2 Additives. Membranes 2014, 4, 123-142.

AMA Style

Scipioni R, Gazzoli D, Teocoli F, Palumbo O, Paolone A, Ibris N, Brutti S, Navarra MA. Preparation and Characterization of Nanocomposite Polymer Membranes Containing Functionalized SnO2 Additives. Membranes. 2014; 4(1):123-142.

Chicago/Turabian Style

Scipioni, Roberto; Gazzoli, Delia; Teocoli, Francesca; Palumbo, Oriele; Paolone, Annalisa; Ibris, Neluta; Brutti, Sergio; Navarra, Maria A. 2014. "Preparation and Characterization of Nanocomposite Polymer Membranes Containing Functionalized SnO2 Additives." Membranes 4, no. 1: 123-142.



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