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PEG–catalytic water splitting in the interface of a bipolar membrane

2003; Elsevier BV; Volume: 263; Issue: 2 Linguagem: Inglês

10.1016/s0021-9797(03)00307-2

1095-7103

Rongqiang Fu, Tongwen Xu, Gang Wang, Weihua Yang, Zhongxiao Pan,

Membrane Separation Technologies

This paper investigates the effect of polyethylene glycol (PEG) on the water dissociation of bipolar membranes. To do this, bipolar membranes were prepared by immersing anion exchange membranes in different-concentration solutions of different-molecular-weight PEGs and then casting the solutions of sulfonated polyphenylene oxide (SPPO) on the anion exchange membranes. All the bipolar membranes with PEG in the interface are evaluated by current-voltage curves. The experimental results prove that PEG has excellent catalytic function for water dissociation. Furthermore, this function is enhanced by both PEG amount (PEG concentration) and PEG molecular weight in the interface of a bipolar membrane.