Figure 6 | Scientific Reports

Figure 6

From: General Solvent-dependent Strategy toward Enhanced Oxygen Reduction Reaction in Graphene/Metal Oxide Nanohybrids: Effects of Nitrogen-containing Solvent

Figure 6

The effect of ammonia additive.

(a) The CV comparison of triple-ammonia CNG-EtOH (labeled as I) and CNG-EtOH (labeled as II) with N2-saturated (dashed lines) and O2-saturated (solid lines) conditions. (b) The CVs of triple-ammonia CNG-H2O (I) and CNG-H2O (II). (c) The TEM images of the products following the CNG-DMF procedure without adding ammonia.

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