超级电容器
杂原子
碳纤维
材料科学
储能
锂(药物)
三元运算
电容
纳米技术
聚合物
电化学
化学工程
电极
化学
复合材料
有机化学
计算机科学
复合数
程序设计语言
戒指(化学)
功率(物理)
物理化学
内分泌学
工程类
物理
医学
量子力学
作者
Huanxi Liao,Guohua Liao,Qingchao Yang,Yanhe Xiao,Baochang Cheng,Shuijin Lei
标识
DOI:10.1016/j.est.2024.110520
摘要
In order to improve the energy storage capacity of carbon materials, exploring advanced preparation and modification technologies for carbon materials has always been the primary challenge in this field. Herein, we report a novel and diversified modification strategy for carbon materials, which can simultaneously satisfy pore regulation, catalytic graphitization, and heteroatoms doping. By modifying the carbon materials derived from super absorbent polymer in baby disposable diapers, both supercapacitors and lithium-oxygen batteries have achieved excellent electrochemical performance. In the application of supercapacitors, it shows a large specific capacitance of 384.1 F g−1 at 0.5 A g−1 and an outstanding ultrastability with a capacitance retention of 99 % over 10,0000 cycles at 20 A g−1. For the application in lithium-oxygen batteries, a high discharge capacity of 13,589 mAh g−1 can be achieved. These attractive electrochemical properties demonstrate enormous potential for practical applications of the as-developed ternary-modified carbon materials.
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