Synthesis and characterization of zinc oxide/ carbon aerogel as supercapacitor electrode materials

• Main Authors: Shih-Hao CHIU, 邱士豪
• Other Authors: Ching-Ling Hsu
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/48892053844844752395

碩士 === 中原大學 === 奈米科技碩士學位學程 === 103 === Zinc oxides (ZnO) have been considered as one of the promising pseudocapacitor electrode materials in recent years, owing to their low cost, ease of synthesis, earth abundance, and low toxicity. In addition, many reports show that capacitive efficiency and cycling stability of zinc oxides are not good enough. In this study, we developed a preparation method successfully for ZnO/carbon aerogel composites, which involves a simple hydrothermal method of ZnO within a mesoporous carbon aerogel of high conductivity and high specific surface area (611.793 m2/g). The synergistic effect between the ZnO and carbon aerogel drastically improves the capacitive performance of ZnO. ZnO and carbon aerogel show good incorporation, because zinc oxides will grow and stack on the porous carbon aerogel of high specific surface area and high conductivity. Here, the carbon aerogel provides a highly conductive network for electron transport during the electrical charge and discharge processes of the sample.