Polysulfone and zirconia composite separators for alkaline water electrolysis
Li XU, Wei LI, Yan YOU, Shaoxing ZHANG, Yingchun ZHAO
Polysulfone and zirconia composite separators for alkaline water electrolysis
The novel composite separators composed of polysulfone and zirconia were prepared by phase inversion precipitation technique. This technique allows pre-evaporation time and extraction temperature to be varied in order to obtain optimal performances of the separators. In order to evaluate practical applicability of those composite separators, a small-scale electrolysis experimental apparatus was used to investigate the changes of cell voltage, gas purity and separator stability. The results revealed a decreased cell voltage compared to the conventional asbestos separators, and the gas purity and separator stability met the requirements for industrial use.
phase inversion / separator / alkaline water electrolysis / mechanical and chemical stability
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