【摘要】 电催化重整塑料技术因其反应条件温和、转化效率高等优势在塑料回收研究领域受到了广泛关注，已成为废弃塑料高值化利用的重要途径之一。本文通过界面工程策略，构筑了NiCu/Co₂Mn₂O₄复合电催化剂，并实现了聚对苯二甲酸乙二醇酯（PET）塑料中间产物乙二醇（EG）电催化重整制备甲酸（FA）。NiCu纳米颗粒合金成功负载Co₂Mn₂O₄纳米线表面形成了具有强电子相互作用的异质纳米结构，同时三维多孔纳米阵列结构保证了离子与反应物传质。所制备的NiCu/Co₂Mn₂O₄催化剂在1.49 V的电压下能够实现中间产物EG氧化制备FA反应的100 mA·cm^-2的电流密度。稳定性测试结果表明，在持续反应40 h后，电位没有明显衰减，表明所制备的催化剂具有良好的催化稳定性。本研究为基于多元金属氧化物与金属合金材料构筑可用于高效电催化重整塑料的复合电催化剂提供了新的思路。更多还原

【Abstract】 Electrocatalytic plastic recycling has received great attention in the research field of plastic recycling field owing to its mild reaction condition and high conversion efficiency. In this work, NiCu/Co₂Mn₂O₄ composite electrocatalyst is constructed via the interfacial engineering strategy and the production of formic acid（FA） via the electro-recycling from the polyethylene terephthalate（PET） is achieved. The NiCu nanoparticles was anchored on the surface of Co₂Mn₂O₄ nanowires, which results in the formation of heterostructure with strong electronic interaction. Meanwhile, the 3D porous nanoarrays structure enables the efficient mass transfer. The PET was upgraded to FA over NiCu/Co₂Mn₂O₄ composite electrocatalyst with an overpotential of 1.49 V at a current density of 100 mA·cm^-2. The stability test result indicates that the as-prepared catalyst exhibits high stability with no significant degradation of the potential over the test period of 40 h. This work provides a new idea for the construction of high-performance electrocatalyst for plastic recycling via the combination of multi-metal oxides and metal alloys materials.更多还原