Progress of Cryogenics and Isotopes Separation

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The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.
SYNTHESIS AND CHARACTERIZATION OF SILICA DOPED/SULFONATED POLY (PHENYLENE OXIDE) MEMBRANES Print

SYNTHESIS AND CHARACTERIZATION OF SILICA DOPED/SULFONATED POLY (PHENYLENE OXIDE) MEMBRANES

 

 

D. Ebrasu*, I. Petreanu, M. Varlam, I. Stefanescu

 

National Research and Development Institute for Cryogenics and Isotopic Technologies -

ICIT Rm. Valcea, 4 Uzinei St., PO Box 7 Raureni, 240050, Romania

 

 

ABSTRACT

 

Silica doped/sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) (Si-SPPO) membranes were studied for operation in hydrogen/oxygen proton-exchange membrane fuel cells from Room Temperature (RT) up to 120°C. The Si-SPPO membranes were prepared though sol–gel reaction with tetraethoxysilane (TEOS) followed by heat treatment from 60 and 120°C. The presence of silicon oxide in the composite membranes was put in evidence by FTIR spectroscopy and thermal properties were studied by TG-DSC measurements. Ionic exchange capacity, water uptake and proton conductivity characterizations were carried out. The addition of silica nanoparticles improve the thermal stability and proton conductivity of the composite membranes. Therefore, the silica doped membranes are suitable for potential application in high temperature fuel cells.

 

KEYWORDS: Silica, Composite, Membrane, Fuel Cell, Proton.

 

*Corresponding authors: Daniela Ebrasu - email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it