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June 28, 2024ACS Nano

Holey Sheets Enhance the Packing and Osmotic Energy Harvesting of Graphene Oxide Membranes

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Authors

HPHun ParkKLKi Hyun LeeSNSung Hyun Noh

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Overview

Experimental analysis demonstrates enhanced osmotic power harvesting in holey graphene oxide membranes, indicating that defect-free nanochannel packing improves ionic transport.

Key Points

  • In-plane nanopores in graphene oxide sheets suppress membrane assembly defects, creating well-aligned nanochannel pathways for fast ion transport.
  • An osmotic power density of 13.15 W m-2 and 46.6% conversion efficiency are achieved across a steep potassium chloride concentration gradient.
  • Assessment of nanofluidic membrane performance shows that softer porous sheets form compact lamellar microstructures, which may enable scalable energy harvesting.

Cite This Study

Park et al. (2024) studied this question.

synapsesocial.com/papers/68e62ad5b6db6435875bde83https://doi.org/10.1021/acsnano.4c04493
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