Experimental and modelling study of ionic selectivity in carbon coated alumina nanofiber membranes

Ilya I. Ryzhkov, Denis V. Lebedev, Vera S. Solodovnichenko, Alexey V. Shiverskiy, Michael M. Simunin, Vladimir A. Parfenov

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

Выдержка

A novel type of ion-selective membranes, which combine the advantages of ceramic nanofibrous media with good electrical conductivity, is proposed. The membranes are produced from Nafen alumina nanofibers (diameter around 10 nm) by filtration of nanofiber suspension through a porous support followed by drying and sintering. Electrical conductivity is achieved by depositing a thin carbon layer on the nanofibers by CVD. Raman spectroscopy and TEM are used to confirm the carbon structure formation. The average pore size determined by low temperature nitrogen adsorption experiments lies in the range 15-30 nm. Measurements of membrane potential show that the carbon coated membranes acquire high ionic selectivity (transference numbers 0.94 for anion and 0.06 for cation in aqueous KCl). The fixed membrane charge is determined by fitting the experimental data to Teorell-Meyer-Sievers and Space-charge models.

Язык оригиналаанглийский
Страницы (с-по)253-258
Число страниц6
ЖурналChemical Engineering Transactions
Том60
DOI
СостояниеОпубликовано - 1 янв 2017
Опубликовано для внешнего пользованияДа

Предметные области Scopus

  • Химическая технология (все)

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Ryzhkov, Ilya I. ; Lebedev, Denis V. ; Solodovnichenko, Vera S. ; Shiverskiy, Alexey V. ; Simunin, Michael M. ; Parfenov, Vladimir A. / Experimental and modelling study of ionic selectivity in carbon coated alumina nanofiber membranes. В: Chemical Engineering Transactions. 2017 ; Том 60. стр. 253-258.
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Experimental and modelling study of ionic selectivity in carbon coated alumina nanofiber membranes. / Ryzhkov, Ilya I.; Lebedev, Denis V.; Solodovnichenko, Vera S.; Shiverskiy, Alexey V.; Simunin, Michael M.; Parfenov, Vladimir A.

В: Chemical Engineering Transactions, Том 60, 01.01.2017, стр. 253-258.

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

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AU - Simunin, Michael M.

AU - Parfenov, Vladimir A.

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