TY - JOUR T1 - A Statistical Mechanical Theory of First-order Phase Transitions on Crystalline Electrodes A1 - Medveď, Igor A1 - Huckaby, Dale A. JA - Obzory matematiky, fyziky a informatiky Y1 - 2006 VL - 35 IS - 3 SP - 21 EP - 24 SN - 1335-4981 N2 - We briefly discuss a statistical mechanical theory from which voltammogram spikes observed during underpotential deposition (UPD) on electrode surfaces can be obtained. We interpret a voltammogram spike as an averaged result of a first-order phase transition taking place in each of the crystalline domains (crystals) formed on the electrode surface. This allows us to fit the theoretical voltammogram spike to experiment with very good precision. We demonstrate this with the UPD of Cu on Pt(111). ER -