Gómez Marín, Ana María, Boronat-González, Ana, Feliu, Juan M.
Electrocatalytic oxidation and reduction of H2O2 on Au single crystals
Russian Journal of Electrochemistry. 2017, 53(9): 1029-1041. doi:10.1134/S1023193517090063
URI: http://hdl.handle.net/10045/83308
DOI: 10.1134/S1023193517090063
ISSN: 1023-1935 (Print)
Abstract: 
In this work, the reduction and oxidation of hydrogen peroxide on Au single crystals is studied in weakly adsorbing electrolytes. Results are discussed in terms of the potential of zero charge and the adsorption strength of different anions, which in turn depend on the crystallographic orientation of the electrode. Close to the reaction onset, both reactions follow the same activity trend with Au(100) and Au(111) being the most and the least active surface planes, respectively. At high potentials, gold oxides inhibit the oxidation of H2O2, which seems to be controlled by a surface process.
Keywords:Hydrogen peroxide oxidation, Hydrogen peroxide reduction, Gold single crystals, Rotating disk electrodes, Koutecky–Levich equation, Potential of zero charge
Pleiades Publishing
info:eu-repo/semantics/article