Figure 14.
SEM images of the GPE membrane: (a) pristine PVDF, (b) PVDF-1% SiO2(Li+), (c) PVDF-2% SiO2(Li+), (d) PVDF-5% SiO2(Li+), and (e) PVDF-10% SiO2(Li+). Reprinted with permission from Li et al. [109]. Copyright 2013 Springer Nature.
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