[Wang, Deping] Hengyang Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Organometall Mat, Hengyang 421008, Hunan, Peoples R China.
[He, Yongqiang; Xia, Xiaohong; Liu, Hongbo] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Xia, Xiaohong] Hunan Univ, Hunan Joint Int Lab Adv Mat & Technol Clean Energy, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Xiaohong Xia] C
College of Material Science and Engineering, Hunan University, Changsha, Hunan 410082, PR China<&wdkj&>Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy, Hunan University, Changsha, Hunan 410082, PR China
National Natural Science Foundation of China [517720835]; Hunan Provincial Natural Science Foundation of China [2021JJ30059]; Science and Technology Planning Project of Hunan Province [2018GK1030]; Aid Programs for Science and Technology Innovative Research Team in Higher Educational In- stitutions of Hunan Province; Construct Program of the Key Discipline in Hunan Province
机构署名：
本校为第一机构
院系归属：
化学与材料科学学院
摘要：
Potassium-ion hybrid capacitors (PIHCs) are candidate devices for large-scale electricity storage due to their attractive combination of high energy density of batteries and high power capacity of supercapacitors. But the much larger ionic size and higher mass of K+ in comparison to that of Li+and Na+ make it difficult to identify a high capacity and rate capability anode material. Here we fabricate pyridinic-N rich hollow carbon nanospheres (NHCNs) with tunable shell size by a facile core-shell polymerization and carbonization method. By simpl...
