| Carbon Monoxide Poisoning and Mitigation Strategies for Platinum Catalysts Prepared via Pulse Alternating Current Technique |
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Nikita Faddeev, Maxim Belichenko, Alexandra Kuriganova, Nina Smirnova |
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Platov South Russian State Polytechnic University (NPI), Novocherkassk, 346428, Russia |
Correspondence:
Nikita Faddeev,
Email: nikita.faddeev@yandex.ru
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Received: 4 October 2024 • Accepted: 6 December 2024 |
| Abstract |
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The most important issue for users and manufacturers of Proton Exchange Membrane fuel cells is the durability of the fuel cell. Particular attention should be paid to the cleanliness of the fuel (hydrogen) in fuel cell operation. The resistance of the anodic catalyst to carbon monoxide poisoning is one of the most important properties of Pt/C electrocatalysts in the Proton Exchange Membrane fuel cell, along with their stability. In this study, the resistance to carbon monoxide poisoning of platinum catalysts prepared by the pulsed alternating current technique was investigated. The catalyst obtained was studied as part of a membrane electrode assembly. CO poisoning was carried out by introducing a large amount of CO into the anode line. This corresponds to several tens of hours of operation on dirty hydrogen. A method for restoring the operating characteristics of the membraneelectrode assembly of proton exchange membrane fuel cells was developed based on short-circuiting and selective oxidation of CO. Regular application of this process restored the membrane–electrode assembly to its previous nominal power levels and stabilised its productivity in the range of 100% to 95% when operating on contaminated fuel. |
| Keywords:
Fuel cell, Carbon monoxide poisoning, Mitigation strategy, Energy efficiency |
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