fig2

Figure 2. (A) Plane and cross-section (inset) SEM images of N-CNP coating layer. (B) CA test for bare Zn and N-CNP-coated Zn foil. (C) XRD patterns of Zn foil and N-CNP-coated Zn foil after soaking in electrolyte for one week. (D) Linear polarization curves showing the corrosion on bare Zn and N-CNP-coated Zn foil. (E) V-t curves during Zn nucleation and deposition of Zn//Zn symmetric battery with/without N-CNP coating layer. (F) Time-current curves of Zn nucleation and deposition at an overpotential of -200 mV of the symmetric cells with N-CNP-Zn and bare Zn anodes.