Abstract Carbon supported platinum nanoparticles are commonly used as anode catalysts in low temperature fuel cells. Platinum exhibits an enhanced activity towards hydrogen oxidation reaction; however, its performance during low molecular weight alcohols oxidation is poor. Accordingly, this work presents a trial to improve the electrocatalytic performance of platinum-based electrocatalysts by developing core-shell structured M@Pt [M = Zn, Mn or Sn] nanoparticles supported on activated Vulcan XC-72R carbon black [M@Pt/AC]. They were fabricated using ethylene glycol as a reducing agent with the aid of microwave irradiation. The electrocatalytic activity of different M@Pt/AC electrocatalysts for oxidizing methanol molecules in 0.5 M H2SO4 solution was investigated using cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. These prepared nanomaterials displayed enhanced electrocatalytic behavior towards methanol oxidation reaction. The alcohol oxidation current density was arranged in an ascending order as: Zn@Pt/AC

中文翻译：

---

用于直接甲醇燃料电池的活性炭负载的核壳结构的铂过渡金属纳米粒子

摘要 碳负载铂纳米颗粒通常用作低温燃料电池的阳极催化剂。铂对氢氧化反应具有增强的活性；然而，它在低分子量醇氧化过程中的性能较差。因此，这项工作提出了一项试验，通过开发负载在活化的 Vulcan XC-72R 炭黑上的核壳结构的 M@Pt [M = Zn、Mn 或 Sn] 纳米粒子来提高铂基电催化剂的电催化性能 [M@Pt/交流]。它们是在微波辐射的帮助下使用乙二醇作为还原剂制造的。使用循环伏安法、计时电流法和电化学阻抗谱研究了不同 M@Pt/AC 电催化剂在 0.5 M H2SO4 溶液中氧化甲醇分子的电催化活性。这些制备的纳米材料对甲醇氧化反应显示出增强的电催化行为。醇氧化电流密度按升序排列为：Zn@Pt/AC