Nitrogen-doped porous carbon with complicated architecture and superior K+ storage performance
文献信息
Bingshe Xu, Xueji Zhang
Potassium-ion batteries are potential alternatives to lithium-ion batteries for large-scale energy storage attributed to the low cost and high abundance of potassium. However, the limited potassium-ion intercalation capacity of graphite represents the biggest challenge for PIBs. In this regard, nitrogen doped carbon hollow turbostratic tubes (CHTT-N) are synthesized via the amidation reaction and heat treatment process. Benefiting from their open framework, nitrogen doping, large surface area (efficient ion/electron diffusion), and enlarged interlayer spacing (stable ion insertion), the obtained CHTT-N exhibited an unprecedented long cycle life with high reversible capacity (397 mA h g−1 at 0.1 A g−1) as well as outstanding rate capability (212 mA h g−1 at 2 A g−1). The assembled CHTT-N//CHTT-N potassium-ion hybrid supercapacitor delivered a high energy density of 106 W h kg−1 at a power density of 284 W kg−1.
期刊推荐

Russian Journal of Coordination Chemistry

Russian Chemical Bulletin

Journal of Natural Medicines

Journal of Saudi Chemical Society

Russian Journal of Organic Chemistry

Saudi Pharmaceutical Journal

Journal of Peptide Science

Chemistry Education Research and Practice

Drug Discovery Today

Chemical Communications
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