Tuning the nitrogen-doping configuration in carbon materials<i>via</i>sulfur doping for ultrastable potassium ion storage
Xu Yang, Changlai Wang, Ping Niu, Zhiqiang Li, Lingzhi Wei, Yao Ge, Fangcai Zheng, Qianwang Chen
Abstract
We successfully achieve high-level pyridinic-N and pyrrolic-N in nitrogen-doped carbon materials, which exhibits a high reversible capacity (441.5 mA h g<sup>−1</sup>over 100 cycles at 0.1 A g<sup>−1</sup>) and long-term cycling stability (283.3 mA h g<sup>−1</sup>after 1000 cycles at 2 A g<sup>−1</sup>).
Topics & Concepts
SulfurNitrogenDopingCarbon fibersPotassiumIonMaterials scienceInorganic chemistryChemistryAnalytical Chemistry (journal)OptoelectronicsOrganic chemistryComposite numberComposite materialMetallurgyAdvancements in Battery MaterialsSupercapacitor Materials and FabricationSemiconductor materials and devices