Electrochemical Evaluation of Degradation Stability in Nanostructured Electrocatalysts Based on SiO2-modified Carbon Supports for PEM Fuel Cell Cathodes
Grineva D.E. Zasypkina A.A. Mensharapov R.M. Spasov D.D. Panchenko N.V. Patsaev T.D. Dmitryakov P.V. Ivanova N.A.
April 2025Pleiades Publishing
Nanobiotechnology Reports
2025#20Issue 2231 - 238 pp.
Abstract: The degradation resistance of modified SiO2 carbon supports for electrocatalysts was evaluated using accelerated stress testing under model conditions. No direct correlations were found between the degradation resistance of the supports and that of the electrocatalysts based on them. The intensification of electrochemical corrosion processes is attributed to the presence of oxygen-containing groups in the silicon dioxide modifier on the carbon support surface. Conversely, electrocatalysts based on modified carbon supports exhibit an increase in electrochemically active surface area and degradation resistance by an average of 10‒25%.
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National Research Center “Kurchatov Institute”, Moscow, Russian Federation
Mendeleev University of Chemical Technology, Moscow, Russian Federation
National Research University “Moscow Power Engineering Institute”, Moscow, Russian Federation
The Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russian Federation
D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Almaty, Kazakhstan
National Research Center “Kurchatov Institute”
Mendeleev University of Chemical Technology
National Research University “Moscow Power Engineering Institute”
The Institute of Physical Chemistry and Electrochemistry
D.V. Sokolsky Institute of Fuel
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