In this study carbon materials with a hierarchical pore structure have been fabricated through a scalable and template free solvothermal method in the presence of metal catalysts, where the presence of metal catalysts was found to be essential for the initial polymerization process. The as‐prepared carbon contained trace amounts of metal residues and exhibited highly efficient catalytic activity toward the oxygen reduction reaction (ORR). Among all the metal catalysts studied, cobalt containing porous carbon exhibited the highest ORR electrocatalytic activity with great tolerance to methanol crossover and excellent long‐term cycling stability, outperforming the commercial 30 % (w/w) Pt/C catalysts. The great performance may be contributed to the unique porous structure, the large specific surface area of cobalt‐doped carbon and chemical activity of cobalt. The result provides useful guidance for the development of carbon‐based electrocatalysts.

中文翻译：

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含痕量金属残留物的多孔碳催化高效还原氧

在这项研究中，具有分级孔隙结构的碳材料是通过可扩展且无模板的溶剂热方法在金属催化剂存在下制备的，其中发现金属催化剂的存在对于初始聚合过程至关重要。所制备的碳包含痕量的金属残留物，并表现出对氧还原反应（ORR）的高效催化活性。在所有研究过的金属催化剂中，含钴的多孔碳表现出最高的ORR电催化活性，对甲醇的穿越具有很大的耐受性，并且具有出色的长期循环稳定性，性能优于市售的30％（w / w）Pt / C催化剂。优异的性能可能归因于独特的多孔结构，钴掺杂碳的大比表面积以及钴的化学活性。该结果为开发碳基电催化剂提供了有用的指导。