摘要
氧化石墨烯材料具有优异的物理化学性质,在能源、环境、生物医药和传感器等众多领域具有广泛应用。氧化石墨烯材料表面具有丰富的电负性官能团,能够与活性组分通过化学耦合作用进行负载和分散,可有效提高复合材料的性能,被认为是理想的载体材料。国家标准定义少层石墨烯材料是3到10个完整的石墨烯层堆垛构成的二维材料。目前很少有文献系统报道少层氧化石墨烯材料的关键理化性能参数的表征分析。本研究基于超声辅助Hummers法制备了高质量少层氧化石墨烯材料,并依据先进表征技术测量分析了少层氧化石墨烯的物相组成、微观结构、厚度/层数、表面官能团、结构缺陷等关键理化性能参数,为氧化石墨烯材料的检测分析及下游粉体复合材料的应用研究提供了重要参考。
Graphene oxide materials have excellent physical and chemical properties,and are widely used in many fields such as energy,environment,biomedicine and sensors.Graphene oxide materials have abundant electronegative functional groups on their surface.They can be loaded and dispersed with active components through chemical coupling,effectively improving the performance of composite materials,and are considered an ideal carrier material.The national standard defines the fewer layers of graphene as a two-dimensional material composed of three to ten complete graphene layers stacked.At present,there are few systematic reports on the characterization and analysis of key physicochemical properties parameters of graphene oxide materials with fewer layers.In this paper,high-quality graphene oxide materials with fewer layers are prepared by ultrasonic-assisted Hummers method,and the key parameters such as phase composition,microstructure,thickness or layer number,surface functional groups and structural defects of graphene oxide with fewer layers were measured and analyzed based on advanced characterization techniques.All of these provide important reference for the detection and analysis of graphene oxide materials and the application research of downstream powder composites materials.
作者
梁俊梅
赵海波
赵少雷
赵悦
吴玉龙
Liang Junmei;Zhao Haibo;Zhao Shaolei;Zhao Yue;Wu Yulong(Beijing Institute of Metrology,Beijing 100029,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)
出处
《分析仪器》
CAS
2023年第5期56-61,共6页
Analytical Instrumentation
基金
国家市场监督管理总局科技计划项目(2022MK002)
国家自然科学基金重点项目(21838006)
北京市博士后工作经费资助项目(2022-zz-055)
北京市计量检测科学研究院自主立项项目(KJ2023-25)。
关键词
石墨烯
氧化石墨烯
二维材料
理化性能
表征技术
Graphene
Graphene oxide
Two-dimensional material
Physicochemical properties
Characterization technique
