Jack H. Baricuatro, Manuel P. Soriaga
The interfacial electrochemistry of Co on polycrystalline Pd and Pd(111) was characterized using a combination of electrochemical methods (voltammetry and coulometry) and ultrahigh vacuum electron spectroscopies (Auger electron spectroscopy and low-energy electron diffraction). Electrodeposition of Co was found to be highly surface structure sensitive. While virtually no Co electrodeposition transpired on a clean Pd(111) surface, Co was voltammetrically deposited on (1) a Pd(111) electrode roughened by oxidation-reduction cycles and (2) thermally annealed polycrystalline Pd, which is a composite of the (111) and (100) facets. Electrodeposition of Co was observed to be kinetically hindered and required slow potential scan rates (0. 1 mV/s). © 2010 Springer.
Department of Chemistry, University of San Carlos, Cebu 6000, Philippines; Department of Chemistry, Texas A and M University, College Station, TX 77843, United States
