摘要
四氧化三钴(Co_(3)O_(4))的电容特性高,功率特性、能量特性以及循环性能优良,但单纯的Co_(3)O_(4)导电性较差,电化学利用率低,而石墨烯不仅电学、热学和力学的性质优异,而且比表面积大。以石墨烯为载体可以改善Co_(3)O_(4)的导电性,提高Co_(3)O_(4)的电化学利用率。以氧化石墨烯(GO)为前驱体,采用热爆法合成Co_(3)O_(4)/还原氧化石墨烯(rGO)复合材料。采用X射线光电子能谱,扫描电子显微镜和X射线衍射仪对样品的表征进行测试和分析,同时对样品进行电化学性能的测试。结果表明:制备的Co_(3)O_(4)/rGO复合材料具有较高的电化学催化性能。
Cobalt tetraoxide(Co_(3)O_(4))has high capacitance characteristics,excellent power characteristics,energy characteristics and cycling performance,However,pure Co_(3)O_(4) has poor conductivity and low electrochemical utilization.Graphene not only has excellent electrical,thermal,and mechanical properties,but also has a large specific surface area.Using graphene as a carrier can improve the conductivity of Co_(3)O_(4),and enhance its electrochemical utilization efficiency.Using graphene oxide(GO)as a precursor,Co_(3)O_(4)./rGOcomposite material was synthesized by thermal explosion method.The characterization of the samples was tested and analyzed using X-ray photoelectron spectroscopy,scanning electron microscopy,and X-ray diffraction.At the same time,the electrochemical properties of the samples were tested.The results showed that the prepared Co_(3)O_(4)/rGOcomposite material had high electrochemical catalytic performance.
作者
邱娅萍
张镇宇
周雪飞
鲍琳
郭彦强
Qiu Yaping;Zhang Zhenyu;Zhou Xuefei;Bao Lin;Guo Yanqiang(Key Laboratory for Synthetic and Natural Functional Molecular Chemistry of the Ministry of Education,College of Chemistry and Materials Science,Northwest University,Xi'an 710127;Xi'an Highway Research Institute,Xi'an 710000)
出处
《化工新型材料》
北大核心
2025年第S1期180-183,共4页
New Chemical Materials
基金
国家自然科学基金(21706214)
陕西省教育厅自然科学专项(18JK0766)
陕西基础科学研究院青年项目(23JHQ083)
西北大学合成与天然功能分子教育部重点实验室开放基金项目(KLSNFM2020005)
关键词
四氧化三钴
石墨烯
水热法
复合材料
电化学
cobalt tetraoxide
graphene
hydrothermal method
composite material
electrochemistry
