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. Author manuscript; available in PMC: 2016 Jul 25.
Published in final edited form as: Chem Commun (Camb). 2015 Jun 23;51(58):11681–11684. doi: 10.1039/c5cc03364k

Figure 2.

Figure 2

Rotating disc catalytic oxygen reduction voltammograms of (a) PGE/MWNT/HLM, (b) PGE/HLM, (c) PGE/MWNT, and (d) PGE/PL films in saturated oxygen, phosphate buffer (pH 7.0) at 25 °C, 300 rpm rotation rate, scan rate 0.3 V s−1.