Selective Oxidation of sp-Bonded Carbon in Graphdiyne/Carbon Nanotubes Heterostructures to Form Dominant Epoxy Groups for Two-Electron Oxygen Reduction
Tiantian Lu,
Mingzi Sun,
Fengmei Wang
et al.
Abstract:Two-electron oxygen reduction reaction (2e– ORR)
is of great significance to H2O2 production
and reversible nonalkaline Zn-air batteries (ZABs). Multiple oxygen-containing
sp2-bonded nanocarbons have been developed as electrocatalysts
for 2e– ORR, but they still suffer from poor activity
and stability due to the limited and mixed active sites at the edges
as well as hydrophilic character. Herein, graphdiyne (GDY) with rich
sp-C bonds is studied for enhanced 2e– ORR. First,
computational studies show that GDY h… Show more
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