水热法制备三氧化二铝掺杂石墨烯泡沫  

Hydrothermal preparation of aluminum oxide doped graphene sponge

作　　者：赵连勤[1] 张孝亮[1] 谢静茹[1] 禹宝伟 吴蕊含 杨胜韬[1] 

机构地区：[1]西南民族大学化学与环境保护工程学院,四川成都610041

出　　处：《西南民族大学学报（自然科学版）》2014年第6期849-852,共4页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：四川省科技支撑计划(No.2013FZ0060);国家自然科学基金青年基金项目(No.21307101)

摘　　要：石墨烯泡沫与其他纳米材料掺杂是提高石墨烯泡沫性能、拓展石墨烯泡沫应用的重要手段.发展简便的掺杂石墨烯泡沫的方法对石墨烯技术具有重要的意义.本文以氧化石墨烯和偏铝酸钠为原料,采用水热反应一步合成了三氧化二铝掺杂的石墨烯泡沫复合材料.掺杂石墨烯泡沫采用扫描电子显微镜、X射线光电子能谱、红外光谱和孔径结构等技术进行表征.结果表明,氧化石墨烯在水热反应中充分还原,偏铝酸钠在水热反应中有效水解.针状三氧化二铝纳米颗粒均匀掺杂到石墨烯泡沫的多孔结构中,得到比表面积大、掺杂量高的掺杂石墨烯泡沫.Combination of graphene sponge（GS） doped with other nanomaterials is important strategy to improve the performance and applications of GS. Developing facile methods for the preparation of doped GS is of great importance. In this study, alumina doped GS（Al2O3-GS） was prepared from graphene oxide and sodium metaaluminate by one-step hydrothermal method. Al2O3-GS was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, infra-red spectrometer and Brunauer–Emmett–Teller technique. The results indicated that graphene oxide was fully reduced in the hydrothermal reaction accompanied with effective hydrolysis of sodium metaaluminate. Porous GS of large specific area and high doping content was obtained, where the doping of needle-likealumina was homogeneous.

关 键 词：三氧化二铝 石墨烯 泡沫 水热反应 

分 类 号：TB383[一般工业技术—材料科学与工程]