Pt 電極面上へのCuの電気化学的析出と鏡面反射率
摘要
Current-potential and specular reflectivity-potential curves of Pt electr)des have been measured ding electrolysis by dynamic potential scan in l M HCIOin the presence of small amounts of Cu2 An atomic layer of Cu formed on the Pt through Faradaic adsorption at around02Vwhich is markedly anodic to the reversible potential of the CuCu2coupleThe f(rmation of the Cu layer caused a decrease in refltivity over the whole wavelength region investigated On the other hand another multilayer deposition of Cu took place at about-01Vwhich is close to the reversible potential of CuCu2and this deposition gave rise to increased reflectivity in the whole wavelength region investigatedDetailed analysis of therst adsorbed layer and the deposited multilayer of Cu was carre(i out by comparing the current-potential and the reflectivity-potential curvesthe latter of whicll was referred tQ the theoretical reHectance spectrof Cu Qn Pt calculated with the optical con-