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The effect of the preferential orientation of supporting bacterial cellulose (BC) nanofibrils on the conductivity of composite proton conducting electrolytes with poly(4-styrene sulfonic acid) (PSSA) is reported. Data obtained by impedance spectroscopy show that the in-plane conductivity at 40% relative humidity (RH) is more than half order of magnitude higher than that measured through-plane, indicating...
This paper reports the characterization of a Nafion®/bacterial cellulose (BC) nanocomposite prepared by impregnation of a nanofibrillar BC membrane with Nafion®. Such nanocomposite membrane is obtained crack-free and with thickness close to 100μm. Dynamic mechanical analysis reveals a storage modulus more than 1 order of magnitude higher than for pure Nafion®, with BC effectively limiting the viscous...
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