Monitoring the Interaction of Two Heterocyclic Compounds on Carbon Steel by Electrochemical Polarization, Noise, and Quantum Chemical Studies

Figure 8

SEM images of (a) bare metal; (b) CS treated with 1.0 M HCl; (c) with P2APH (1.0 mM); (d) with RP2APH (1.0 mM) for 24 h.