掺杂时间对水热法制备氮掺杂还原氧化石墨烯的影响研究  

Hydrothermal Preparation of Nitrogen-doped Reduced Graphene Oxide and Its Properties as a Function of Doping Time

作　　者：刘慧平 杨懿 李云鹏 周元林[1,2] 李迎军 LIU Hui-ping;YANG Yi;LI Yun-peng;ZHOU Yuan-lin;LI Ying-jun(State Key Laboratory of Environmental-friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China;School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学环境友好能源材料国家重点实验室,绵阳621010 [2]西南科技大学材料与化学学院,绵阳621010

出　　处：《武汉理工大学学报》2024年第2期13-20,27,共9页Journal of Wuhan University of Technology

基　　金：西南科技大学博士基金(23zx7154);环境友好能源材料国家重点实验室项目(20Fksy13).

摘　　要：以氨水为氮源,探究了水热反应时间不同情况下氮掺杂还原氧化石墨烯(NrGO)结构和性能的影响。采用扫描电镜(SEM)、X射线衍射(XRD)、拉曼光谱分析(Raman)、X射线光电子能谱分析(XPS)、比表面积分析(BET)等测试手段对其形貌和结构进行表征。结果表明,随着氮掺杂时间的增加,NrGO的氮元素含量从7.05%增加到9.22%。氮的掺杂导致了石墨烯结构缺陷增多、微观形貌褶皱增多及导电性变好,氮键构型也表现出不同的变化趋势。The effect of different cases of hydrothermal reaction time on the structure and properties of nitrogen-doped reduced graphene oxide(NrGO)was investigated using ammonia as a nitrogen source.Scanning electron microscopy(SEM),X-ray diffraction(XRD),Raman spectroscopy(Raman),X-ray photoelectron spectroscopy(XPS),specific surface area analysis(BET),and other test methods were used to characterize the morphology and structure.The results showed that the nitrogen content of NrGO increased from 7.05%to 9.22%with the increase of nitrogen doping time.Nitrogen doping led to an increase in structural defects,an increase in micro-morphological folds and a better electrical conductivity of graphene,and the nitrogen bonding configurations also showed different trends.

关 键 词：氮掺杂还原氧化石墨烯 氧化石墨烯 水热法 导电性 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]