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Nitrogen-doped porous carbon (NPC) was successfully synthesized with zeolitic imidazolate framework-8 (ZIF-8) as the precursor at a high carbonization temperature of 950°C, which can generate relatively pure NPC. When used as the anode materials for sodium ion batteries, the NPC exhibits an excellent rate capability and cycling stability, delivering a reversible capacity of 144.7mAhg−1 at a current...
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