Abstract The development of anodic catalysts for direct methanol fuel cell applications has recently been concerned in both academy and energy industries. In this study, we successfully developed an efficient electrocatalyst based on ultra-small platinum nanoparticles (Pt NPs) deposited reduced graphene oxide (rGO) supported by a three-dimensional (3D) framework. The catalyst was directly used as a self-supported and binder-free electrode for electrocatalytically catalyzing methanol oxidation (MOR). The achieved results showed the enhanced catalytic behavior of Pt-rGO/3DF towards MOR along with an excellent stability, superior to another electrode catalyst based on commercial Pt-C product. Our findings implied that growth of the Pt NPs on rGO nanosheets supported by a three-dimensional (3D) foam could impressively increase the catalytic performance of the resulting catalyst material towards MOR in alkaline environment. This study may open a novel and efficient option for creating highly catalytic hybrid towards MOR in fuel cell applications.

中文翻译：

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超小铂纳米颗粒沉积在 3D 框架上的石墨烯作为甲醇氧化的自支撑催化剂

摘要 用于直接甲醇燃料电池应用的阳极催化剂的开发最近受到学术界和能源行业的关注。在这项研究中，我们成功开发了一种基于超小铂纳米粒子 (Pt NPs) 沉积的由三维 (3D) 框架支撑的还原氧化石墨烯 (rGO) 的高效电催化剂。该催化剂直接用作自支撑和无粘合剂的电极，用于电催化甲醇氧化（MOR）。所取得的结果表明，Pt-rGO/3DF 对 MOR 的催化行为增强，稳定性优异，优于另一种基于商业 Pt-C 产品的电极催化剂。我们的研究结果表明，由三维 (3D) 泡沫支撑的 rGO 纳米片上 Pt NP 的生长可以显着提高所得催化剂材料在碱性环境中对 MOR 的催化性能。这项研究可能为在燃料电池应用中为 MOR 创建高催化混合动力开辟了一个新的和有效的选择。