Is Fe the Most Active Site for Fe/N-Doped Graphdiyne?
Yuanyi Feng,
Mingying Sun,
Yongfei Ji
et al.
Abstract:We performed a systematic study on the activity of pristine,
Fe-doped,
N-doped, and Fe/N-codoped graphdiyne (GDY) for oxygen reduction reactions
(ORRs). We found that the pristine GDY has a high overpotential because
of the weak binding of the intermediates. The sp-hybridized N-doped
GDY enhances the binding of the intermediates at the adjacent sp-hybridized
C site, which greatly enhances its ORR activities with a low overpotential
of 0.45 V. On the other hand, on Fe-doped GDY, the binding of the
intermediates… Show more
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