A humidity-sensitive nanocomposite solid ion conductor: sulfonated poly- ether-ether-ketone in nanotubular TiO2 or ZrO2 matrix CITATIONS 0 READS 95 Flexible and Stretchable Batteries View project Improving the corrosion resistance of electronic modules View project

Olim Ruzimuradov (1) , M. Braglia (1) , Florence Vacandio (1) , Philippe Knauth (1)

1 MADIREL - Matériaux divisés, interfaces, réactivité, électrochimie

A nanocomposite solid ion conductor was prepared by infiltrating zirconia or titania nanotube arrays, made by electrochemical anodization of Zr or Ti metal, with proton-conducting sulfonated poly(ether-ether-ketone) (SPEEK) ionomer. The resulting material was characterized using scanning electron microscopy, X-ray diffraction, and infrared spectroscopy showing the successful filling of the nanotubular matrix with the ionomer. Impedance spectroscopy revealed a conductivity increase by several orders of magnitude after infiltration; furthermore, the impedance of the TiO2nt-SPEEK nanocomposite is very sensitive to the relative humidity. Possible applications of these ionic conducting nanocomposites include solid-state humidity sensors or heterogeneous catalytic materials.

Mots clés: Humidity sensing; Proton conductivity; Polymer electrolytes; Nanocomposite materials

Domaines: Matériaux

Olim Ruzimuradov, M. Braglia, Florence Vacandio, Philippe Knauth. A humidity-sensitive nanocomposite solid ion conductor: sulfonated poly- ether-ether-ketone in nanotubular TiO2 or ZrO2 matrix CITATIONS 0 READS 95 Flexible and Stretchable Batteries View project Improving the corrosion resistance of electronic modules View project. Journal of Solid State Electrochemistry, 2018, 22 (10), pp.3255-3260. ⟨10.1007/s10008-018-4026-8⟩. ⟨hal-02656632⟩