超级电容器
电容
电容器
电极
材料科学
阴极
热液循环
复合数
能量密度
纳米材料
纳米线
纳米技术
光电子学
计算机科学
复合材料
化学工程
工程物理
电气工程
电压
物理
量子力学
工程类
作者
Yongli Tong,Tengxi Zhang,Yuchen Sun,Xiaowei Wang,Xiang Wu
标识
DOI:10.1007/s12200-022-00029-0
摘要
Abstract Co 3 O 4 nanomaterials as electrodes have been studied widely in the past decade due to their unique structural characteristics. However, their performance does not yet reach the level required for practical applications. It is, nevertheless, an effective strategy to synthesize hybrid electrode materials with high energy density. Herein we prepare Co 3 O 4 @NiMoO 4 nanowires by a two-step hydrothermal method. The as-obtained sample can be directly used as cathode material of supercapacitors; with specific capacitance of 600 C/g at 1 A/g. An assembled capacitor delivers an energy density of 36.1 Wh/kg at 2700 W/kg, and retains 98.2% of the initial capacity after 8000 cycles. Graphical Abstract
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