Abstract:A great deal of research effort has been dedicated for designing an efficient bifunctional metal‐free carbon catalyst for electrochemical water splitting, however, it remains challenging to introduce multiactive sites into a single catalyst. Herein, a series of bifunctional catalysts is designed that exploit intramolecular reorientation of nitrogen atom within the hollow nanoball from polyacrylonitrile on graphene through thermal treatment to achieve covalent doping. The as synthesized hollow carbon nanoballs … Show more
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