In situ AFM Investigation of Benzotriazole Adsorbed on Cu(110) in Perchloric Acid Solution

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Molecular-resolution images of benzotriazole (BTAH) adsorbed on Cu(110) are investigated by in situ AFM and electrochemical measurement in 100 mM HClO4 solution with 1 mM BTAH. At potential between −250 mV and −150 mV, a bare and unreconstructed Cu(110) surface was observed. At potential from −500 to −250 mV and from −150 to 400 mV, we observed adsorbed BTAH structures, c(2 × 3) and c(2 × 4) structures.