Proton-conducting Microcrystalline Cellulose Doped with Imidazole. Thermal and Electrical Properties

Publish Year: 2015
Publisher:  Electrochimica Acta 155 2015, 38-44
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I. Smolarkiewicz, A. Rachocki, K. Pogorzelec-Glasser, R. Pankiewicz, P. Ławniczak, A. Łapiński, M. Jarek, J. Tritt-Goc
A new biodegradable polymeric material (Cell-Im) consisting of microcrystalline cellulose (Cell) and imidazole (Im) dopant was successfully synthesized. The thermal properties and proton conductivity of Cell-Im were determined and compared with that of pure microcrystalline cellulose. It was found that the Cell-Im exhibits close to four orders of magnitude higher conductivity than a pure cellulose sample, up to approximately 2 × 10−4 S/m at 160 °C under anhydrous conditions. Thermal stability of Cell-Im was confirmed above water boiling point in a temperature range from 110 to about 150 °C. The Cell-Im is inexpensive to obtain, non-hazardous and environmentally friendly and can have potential for possible application as a solid electrolyte in electrochemical devices.

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