Fig. 9.
CVs of ORR run at bare GCE, GCE/Ti3C2Tx and GCE/oTi3C2Tx in 0.1 M NaOH (left) or 0.1 M H2SO4 (right) under N2 and air atmosphere. The experiments were run at a sweep rate of 100 mV s-1.
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