Pulse Electrolysis Technique for Preparation of Bimetal Tin-Containing Electrocatalytic Materials

Autor: Alexandra Kuriganova, Marina Kubanova, Igor Leontyev, Tatiana Molodtsova, Nina Smirnova
Rok vydání: 2022
Předmět:
Zdroj: Catalysts; Volume 12; Issue 11; Pages: 1444
ISSN: 2073-4344
DOI: 10.3390/catal12111444
Popis: Platinum–tin-containing materials are the most popular catalysts for processes occurring in fuel cells with direct ethanol oxidation. Pulse electrolysis based on the electrochemical dispersion of platinum electrodes under the influence of alternating pulse current in an alkaline electrolyte made it possible to introduce the tin component into the catalyst in the form of a dopant, an alloy with platinum, and in the form of an oxide phase and evaluate the effect of the form in which tin is present in the catalyst on its microstructural and electrocatalytic characteristics. The introduction of tin into the catalyst generally increases the rate of ethanol electrooxidation; however, with the most prominent effect observed when tin is present in form of an oxide.
Databáze: OpenAIRE