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. 2020 Jan 9;7(5):1902547. doi: 10.1002/advs.201902547

Figure 1.

Figure 1

Schematic illustration of the preparation of NOHC. Heteroatoms doping (especially multi‐component doping) or micro/mesopores could generate abundant defects, significantly increasing electrochemical active sites and thus enhancing the capacity of carbon materials. Here, we construct a hybrid of porous NOHCs by carbonizing piths of SSs in a large scale, which contain large amounts of oxygen and traces of nitrogen.