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Integrated (solid black line) and differential (dashed black line) quantum capacitances and double-layer capacitance (red dashed line) for pristine graphene. The calculation is based on the fixed-band approximation. Aqueous electrolytes can be operated within the H2O stability range, whereas a wider window is used for organic/ionic electrolytes. This figure was reproduced with permission from ref (24). Copyright 2013 American Chemical Society.
