Electrocatalytical Performance of Au-Pd Cubic and Octahedral Core-Shell Nanostructures in the Formic Acid Oxidation Reaction

Abstract

AuPd cubic and octahedral core-shell nanostructures were synthesized by seed growth method and its performance was evaluated in the formic acid oxidation reaction (FAOR). The core-shell nanostructure shapes were confirmed by SEM in Figure 1. The electrochemical surface areas were obtained by CO stripping. The electrocatalytic activity in the FAOR was evaluated in a 0.5 M HClO4 and 1 M HCOOH electrolyte by cyclic voltammetry in Figure 1. The cubic nanostructure showed the best current density for the direct route in the FAOR. The AuPd core-shell encouraged the FAOR direct or indirect route by the CO adsorption-desorption processes on the surface of each shape. Figure 1