In some embodiments, the present disclosure pertains to catalysts for mediating oxygen reduction reactions, such as the conversion of oxygen to at least one of H2O, H2O2, O2-, OH-, and combinations thereof. In some embodiments, the present disclosure pertains to methods of utilizing the catalysts to mediate oxygen reduction reactions. In some embodiments, the catalyst includes a carbon source and a dopant associated with the carbon source. In some embodiments, the catalyst has a three-dimensional structure, a density ranging from about 1 mg/cm3 to about 10 mg/cm3, and a surface area ranging from about 100 m2/g to about 1,000 m2/g. In some embodiments, the carbon source includes graphene nanoribbons, and the dopant includes boron- nitrogen heteroatoms. In some embodiments, the dopant is covalently associated with the edges of the carbon source. Additional embodiments of the present disclosure pertain to methods of making the aforementioned catalysts.
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机译：在一些实施方案中，本公开内容涉及用于介导氧还原反应的催化剂，例如将氧转化为H 2 O，H 2 O 2 ，O 2 -，OH -及其组合。在一些实施方案中，本公开内容涉及利用催化剂介导氧还原反应的方法。在一些实施方案中，催化剂包括碳源和与该碳源缔合的掺杂剂。在一些实施方案中，催化剂具有三维结构，密度为约1mg / cm 3 至约10mg / cm 3 ，表面积为从大约100 m 2 / g到大约1,000 m 2 / g。在一些实施方案中，碳源包括石墨烯纳米带，并且掺杂剂包括硼-氮杂原子。在一些实施例中，掺杂剂与碳源的边缘共价结合。本公开的其他实施方案涉及制备上述催化剂的方法。
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