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A Cu nanoparticle-embedded N-doped carbon nanowire array on copper foam (Cu–N–C NA/CF) shows high catalytic activity, needing an overpotential of 314 mV to drive a geometrical current density of 20 mA cm ⁻² in 1.0 M KOH.
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Zhu et al. (2018) studied this question.
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