Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Materials and Methods
  • Fig. S1. Comparison of SWCNTs grown on Si/SiO2 substrate and Si/SiO2 TEM grid.
  • Fig. S2. Details of the relative surface charge estimation.
  • Fig. S3. SEM images and Raman spectra of the SWCNTs.
  • Fig. S4. Low-magnification TEM and SAED patterns of the Co-W catalyst.
  • Fig. S5. STEM images of another reacted Co-W-C particle with a less W concentration.

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