Abstract N-doped graphene supported quaternary electrocatalyst (PtRuFeCo/NG) was synthesized and evaluated for potential oxygen reduction (ORR) and methanol oxidation reaction (MOR) in fuel cells. The catalyst exhibited excellent MOR (strong CO tolerance, lower onset potential), ORR (four electron transfer) activities and delivered maximum power densities of 778 and 122 mW cm−2 with direct methanol and proton exchange membrane fuel cells, respectively. The N-doping and synergistic effects of alloying low-cost Fe and Co with Pt and Ru makes PtRuFeCo/NG as excellent bifunctional catalyst that greatly reduces the processing cost of fuel cell which is the major problem facing the fuel cell industry.

中文翻译：

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四元PtRuFeCo纳米颗粒负载N掺杂石墨烯作为低温燃料电池的高效双功能电催化剂

摘要 合成了 N 掺杂石墨烯负载的四元电催化剂 (PtRuFeCo/NG)，并评估了燃料电池中潜在的氧还原 (ORR) 和甲醇氧化反应 (MOR)。该催化剂表现出优异的 MOR（强 CO 耐受性，较低的起始电位）、ORR（四电子转移）活性，并分别使用直接甲醇和质子交换膜燃料电池提供 778 和 122 mW cm-2 的最大功率密度。低成本Fe和Co与Pt和Ru合金化的N掺杂和协同效应使PtRuFeCo/NG成为优异的双功能催化剂，大大降低燃料电池的加工成本，这是燃料电池行业面临的主要问题。