纳米氧化镧铈/石墨烯材料的制备及抛光性能研究  

Preparation and polishing performance of La_yCe_xO_2/Graphene nanocomposite

作　　者：桂阳海[1,2] 张宏忠 李栋伟[1] 赵建波[1] 田俊峰[1] 李海利[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,郑州450002 [2]河南省环境污染控制与生态修复协同创新中心,郑州450002

出　　处：《化工新型材料》2016年第4期234-236,共3页New Chemical Materials

基　　金：国家自然科学基金(21371158);中国博士后基金(2015M580638);河南省高校创新人才项目(16HASTIT025);河南省高等学校青年骨干教师资助计划项目(2011GGJS-102)

摘　　要：采用微波水热法以工业碳酸镧铈粉体、尿素、十六烷基三甲基溴化铵(CTAB)和氧化石墨烯溶液为原料原位化学合成了氧化镧铈/石墨烯纳米复合材料,通过XRD和SEM分析手段对产物的晶型结构和形貌进行了表征,并对其抛光性能与一般工业氧化镧铈稀土抛光粉进行了对比研究。结果表明,制备的氧化镧铈/石墨烯复合材料主相为氧化镧和氧化铈,外观主体形貌呈玉米棒状,主体表面的玉米粒结构为纳米级颗粒。抛光性能显示,对玻璃抛蚀量高,在0.035mg/(min·cm^2)以上,玻璃表面无划伤,复合材料中石墨烯质量分数为1.0%时抛光性能较好,特别适用于智能手机显示屏、光学玻璃等制品的精密抛光。Microwave-assisted hydrothermal method was employed to in situ chemically prepared lanthanum and cerium oxides/graphene nanocomposites by using industrial lanthanum cerium carbonate powder,urea,hexadecyl trimethyl ammonium bromide（CTAB）and graphene oxide solution as raw materials.The as-synthesized products were characterized by XRD and SEM,respectively.The polishing performances of products and the industrial rare earth polishing powders of lanthanum and cerium oxides were contrasted.The results showed that the main phases of the as-synthesized composites were lanthanum oxide and cerium oxide.The exterior body morphology was maize cob-like on which were the nano-scale corn particles.Polishing performance showed that the polishing erosion rates of products for glass were high and no scratches were on the glass surface which demonstrated the excellent polishing performance,and it was particularly suitable for precision polishing to smart phone screen,optical glass and other glass products.

关 键 词：纳米 稀土 石墨烯 微波水热 抛光 

分 类 号：TB332[一般工业技术—材料科学与工程]