Science Advances

Supplementary Materials

This PDF file includes:

  • Nanochannel fabrication
  • Ionic current recordings
  • The cycling performance
  • Numerical simulation model
  • fig. S1. Scheme of the etching setup.
  • fig. S2. Schematic of the experimental conductivity cell.
  • fig. S3. The cycling performance of the ion pump system.
  • fig. S4. Numerical simulation model to investigate the pumping property.

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