In this work, a composite of 3D network nitrogen-doped porous carbon on reduced graphene oxide (denoted as NPC/rGO) was derived from pyrolysis of zeolitic imidazolate framework-8 and graphene oxide. The as-prepared NPC/rGO possesses high specific surface area, nitrogen doping and mesopores. When evaluated as the cathode catalyst for Li–O₂ batteries, NPC/rGO exhibited higher specific capacity, better cyclability, and greater rate capability than either nitrogen doped porous carbon or reduced graphene oxide. The outstanding performances suggest that zeolitic imidazolate framework derived nitrogen doped porous carbon materials are promising for Li–O₂ batteries.

中文翻译：

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沸石咪唑骨架衍生的氮掺杂多孔碳和还原氧化石墨烯的复合材料，作为Li-O ₂电池的高效阴极催化剂

在这项工作中，还原型氧化石墨烯（表示为NPC / rGO）上的3D网络氮掺杂多孔碳的复合物是从沸石咪唑酸酯骨架8和氧化石墨烯的热解中得到的。所制备的NPC / rGO具有高的比表面积，氮掺杂和中孔。当被评估为Li–O ₂电池的阴极催化剂时，NPC / rGO与氮掺杂的多孔碳或氧化石墨烯相比，具有更高的比容量，更好的循环性和更大的倍率性能。出色的性能表明，由沸石咪唑酸盐骨架衍生的氮掺杂多孔碳材料有望用于Li-O ₂电池。