Thermally reduced graphite oxide as positive electrode in vanadium redox flow batteries

  title={Thermally reduced graphite oxide as positive electrode in vanadium redox flow batteries},
  author={Zoraida Gonz{\'a}lez and Cristina Botas and Patr{\'i}cia {\'A}lvarez and Silvia Rold{\'a}n and Clara Blanco and Ricardo Santamar{\'i}a and M. E. Carreter de Granda and Rosa Men{\'e}ndez},
Two graphene-like materials, obtained by thermal exfoliation and reduction of a graphite oxide at 700 and 1000oC, were studied as active electrodes in the positive half-cell of a Vanadium Redox Flow Battery (VRFB). In particular, that obtained at 1000oC exhibited an outstanding electrochemical performance in terms of peak current densities (30.54 and 30.05 mAcm for the anodic and cathodic peaks at 1 mVs, respectively) and reversibility (ΔEp = 0.07 V). This excellent bahaviour is attributed to… CONTINUE READING


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