探索高效、经济的非金属氧还原(ORR)电催化剂已成为电化学能源体系的关键.科学界最具挑战性的目标之一是通过合理地验证和精确地调......

Here,a class of metal-free nitrogen self-doped graphene(NG)catalyst for the oxygen reduction reaction(ORR)is in-vestigat......