Graphene scaffolds entrapped polyacrylonitrile electrospun nanofibrous separator for aqueous zinc-ion storage application.

Although the initial capacity was not very high, it began to follow an increasing trend after 300 cycles and can withstand upto 1000 cycles; this sequence is commonly observed in many metal oxide composites 56 – 58 .

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The measured membrane porosity percentage showed a decreasing trend for PP, PG1, PG3, and PG5, which may be attributed to pore blockage with increasing graphene concentration in the membrane.

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