Abstract

Methods for making platinum-based catalytic systems (Pt/C, PtRu/С) in an anode for a low-temperature hydrogen–air fuel cell with a Nafion membrane more tolerant to CO were suggested and implemented. A PtRuCo/C trimetallic catalyst was synthesized, and the influence of the modification of the binary catalyst with cobalt on the current characteristics of the fuel cell was evaluated in a model of a hydrogen–air fuel cell. The fuel cell models had higher operation characteristics in oxidation of pure and technical-grade hydrogen, compared to those with the monoplatinum and binary catalysts. The influence of the air injection into hydrogen containing CO impurities was analyzed. The contribution of the air injection is manifested more strongly for the binary system than for the monoplatinum system. The trimetallic catalyst in combination with the air injection into hydrogen fuel can be used for optimizing the operation of the membrane–electrode unit of a fuel cell operating on technical-grade hydrogen.

中文翻译：

---

使氢-空气燃料电池的阳极更耐CO：PtRuCo / C催化剂以及PtRu / C和氧添加剂的协同作用

摘要

提出并实施了在带有Nafion膜的低温氢空气燃料电池的阳极中制造铂基催化体系（Pt / C，PtRu /С）的方法，并得到了实施。合成了PtRuCo / C三金属催化剂，并在氢空气燃料电池模型中评估了用钴改性二元催化剂对燃料电池电流特性的影响。与单铂和二元催化剂相比，燃料电池模型在纯氢和工业级氢的氧化中具有更高的运行特性。分析了空气注入含CO杂质的氢气的影响。二元系统比单铂系统更明显地体现了空气注入的作用。