Oxygen reduction reaction (ORR) catalysts with hierarchical pore structures, high specific surface area and multiple heteroatoms doping is very attractive due to the rapid mass transport and abundant active sites. In this work, we reported a facile confined strategy to prepare N, P co‐doped hierarchical porous carbon (NPHC) and investigated their catalytic performance for ORR. The strategy greatly simplifies the synthesis procedure of 3D hierarchical carbon templated by SiO₂, which can utilize small organic molecules as carbon sources and avoids the pre‐polymerization and post‐washing process. Moreover, this strategy can be readily extended to synthesis other carbons by simply changing the carbon sources and heteroatom sources, or to synthesize metal compounds/carbon composites by adding metal sources during the synthesis process for energy conversion and storage.

中文翻译：

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N，P共掺杂的3D分层碳的受限合成作为锌空气电池的高效氧还原反应催化剂

具有快速的质量传输和丰富的活性位点，具有分级孔结构，高比表面积和多个杂原子掺杂的氧还原反应（ORR）催化剂非常具有吸引力。在这项工作中，我们报告了一种制备N，P共掺杂的分级多孔碳（NPHC）的简便密闭策略，并研究了它们对ORR的催化性能。该策略大大简化了以SiO _2为模板的3D分层碳的合成过程，可以利用有机小分子作为碳源，并避免了预聚合和后洗涤过程。而且，该策略可以容易地扩展到通过简单地改变碳源和杂原子源来合成其他碳，或通过在合成过程中添加金属源以进行能量转换和存储来合成金属化合物/碳复合物。