Directional modification of oxygen functional groups by N heteroatoms on soft/hard carbons for sodium storage
2022
Chang, Gaobo | Zhao, Yu | Gao, Xinmei | Li, Zhong | Zhao, Hanqing
Different oxygen functionalization processes occur for N-doped soft carbon (N-SC) and hard carbon (N-HC), and there may be a competitive relationship between the formation of pyridinic-N and CO groups. For N-SC, abundant CO groups and defects bring excellent Na⁺ storage performance and cycling stability, especially at high current densities.
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