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N-doping goes sp-hybridized

Specific forms of nitrogen doping can endow carbon-based metal-free materials with electrocatalytic activity. Now, introducing sp-hybridized nitrogen atoms into some acetylenic sites of ultra-thin graphdiyne — a highly π-conjugated lamellar carbon allotrope — has led to excellent oxygen reduction reaction activity.

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Fig. 1: A timeline of the important steps in the development of carbon-based ORR electrocatalysts.
Fig. 2: Schematic representations of the two pericyclic synthetic routes for sp-N-doped GDY.


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Correspondence to Shi-Zhang Qiao.

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Zheng, Y., Qiao, SZ. N-doping goes sp-hybridized. Nature Chem 10, 900–902 (2018).

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