The Catalytic Impact of Ethionine on the Multi-Step Electroreduction of Bi(III) Ions in Chlorates(VII) Solutions

摘要

It was concluded that the presence and the protonation of the ethionine (Et) have effects on the rate of the multi-step process of Bi(III) electroreduction in the 2 mol dm(-3) chlorates(VII). The catalytic activity of ethionine increases with increasing amounts of NaClO4 in the basic electrolyte solution. Increased amounts of HClO4 in chlorate(VII) solutions causes a decreased rate of the Bi(III) ion electroreduction process in the presence of ethionine. This confirms the assumption on the variety of active complexes mediating the passage of electrons.