溶胶凝胶法制备氧化石墨烯/氧化铝复合材料  

Preparation of Graphene Oxide/Alumina Composite Materials Through Sol-gel Method

作　　者：汪涛[1] 蒋明慧[1] 张慧峰[1] 肖巍伟 

机构地区：[1]四川工程职业技术学院建筑工程系,德阳618000 [2]江南石墨烯研究院,常州213100

出　　处：《人工晶体学报》2017年第11期2295-2298,共4页Journal of Synthetic Crystals

基　　金：2017年校级科研项目(YJ2017KJ-09)

摘　　要：将不同配比的异丙醇铝(Al IP)和氧化石墨烯(GO)水分散液,通过溶胶凝胶法制备了氧化石墨烯/氧化铝复合材料。通过SEM和TEM分析,氧化石墨烯被纳米颗粒包裹。XRD分析显示纳米颗粒的成分是Al2O3,通过原子力显微镜(AFM)分析,纳米颗粒的平均粒径为50 nm。复合材料的生长机理是:首先GO和Al IP分子结合,Al IP水解后在GO表面生成Al OOH的小颗粒,随着反应的继续进行颗粒逐渐长大,通过高温处理,Al OOH转变为Al2O3。In this work, with aluminium isopropoxide （ A1 IP） and an aqueous suspension of graphene oxide （ GO） as raw materials, composites of graphene oxide and alumina （ GO/Al2 0 3） with different GO to A1 IP ratios were prepared by sol-gel method. The scanning electron microscopy （ SEM） and transmission electron microscopy （ TEM） images show that the as-obtained composites have unique structures in which the GO sheets coated by nano- particles. The particles were demonstrated to be alumina by X-rays diffraction （ XRD） , and the average grain size of the particles was demonstrated about 50 nm by atomic force microscope（ AFM） . The growth mechanism of the composites was proved. First of all GO combined with A1 IP molecules, and then A1 IP hydrolyzed into small A100H particles on the surfaces of GO plates. As the reaction proceeding, particles gradually grew up. Eventually through the high temperature treatment, A100H turned into A120 3.

关 键 词：氧化石墨烯 氧化铝 溶胶凝胶法 

分 类 号：TB332[一般工业技术—材料科学与工程]