Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1134/S1023193514070088

Ключевые слова: composites, proton-conducting solid electrolytes, fuel cells, mesoporous oxides, Composite materials, Mesoporous materials, Proton exchange membrane fuel cells (PEMFC), Protons, Medium temperature, Proton-conducting electrolyte, Proton-conducting solid electrolyte, Proton-exchange membrane, Silicotungstic acid, Structural characteristics, Temperature range, Solid electrolytes

Аннотация: Composite proton-conducting electrolytes are synthesized based on H4SiW12O40 center dot xH(2)O, CsHSO4, (CsH2PO4)(0.9)(CsHSO4)(0.1) and mesoporous matrices SBA-15 and MCM-41 and their transport and structural characteristics are studied. Composites based on silicotungstic acid demonstrate the conductivity from similar to 10(-3) to 10(-4) S/cm in the temperature range of 25-140A degrees C at the increased partial pressure of water vapor. The conductivity of systems CsHSO4-SBA-15 (at T = 140-200A degrees C) and (CsH2PO4)(0.9)(CsHSO4)(0.1)-SBA-15 (at T = 200-230A degrees C) reaches 10(-2) S/cm and is independent of humidity. The electrolytes studied are promising as proton-exchange membranes of fuel cells operating at low and medium temperatures.

Журнал: RUSSIAN JOURNAL OF ELECTROCHEMISTRY

Выпуск журнала: Vol. 50, Is. 7

Номера страниц: 603-612

ISSN журнала: 10231935

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Lavrova G.V. (Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences)
• Ponomareva V.G. (Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences)
• Uvarov N.F. (Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences)
• Ponomarenko I.V. (Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences)
• Kirik S.D. (Siberian Federal University)

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