三维石墨烯/氧化锌纳米结构复合材料的制备及其在双氧水检测中的应用  

Preparation of 3D graphene-zinc oxide nanorods composite for hydrogen peroxide detection application

作　　者：张艳娟[1,2,3] 郭新立[1,2,3] 郝威[1] 王蔚妮[1] 张灵敏[1] 李琦[1] 陈坚[1] 王增梅[1] 孙立涛[2] 

机构地区：[1]东南大学材料科学与工程学院,江苏省金属高技术重点实验室,南京211189 [2]东南大学江南石墨烯研究院先进碳材料联合研发中心,南京210096 [3]东南大学张家港工业技术研究院,江苏张家港215628

出　　处：《功能材料》2015年第16期16142-16146,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(21173041);东大-江南石墨烯研究院先进碳材料联合研发中心开放课题资助项目(8512000301);2012年苏州市纳米技术专项资助项目(ZXG2012029)

摘　　要：通过化学气相沉积法制备出孔洞为300~500μm骨架完好的三维石墨烯,并采用晶种诱导法在三维石墨烯表面原位生长直径为100nm左右、长度达2.80μm的ZnO纳米棒,从而制备出高度结晶的三维石墨烯/氧化锌纳米结构的复合材料。复合材料用XRD、SEM进行表征,并通过循环伏安曲线（CV曲线）及时间电流曲线（I-t曲线）电化学测试方法,测试三维石墨烯/氧化锌纳米结构复合材料对双氧水的检测情况。结果显示,采用新方法制备的三维石墨烯/氧化锌纳米结构复合材料作为电极对双氧水表现出优异的检测性能,检测限为1μmol/L,且线性检测范围为10~120μmol/L。Three-dimensional（3D）graphene foam has been synthesized by chemical vapor deposition（CVD）method,and well-aligned ZnO nanorod arrays were prepared on the surface of graphene foam by seed-mediated hydrothermal growth in aqueous solution.The size distribution was uniform,the ZnO nanorods are about100 nm in diameters and 2.80μm in length,and the results showed that the ZnO/graphene foam composite has high crystallinity.The products were characterized with XRD,SEM,and its electrochemical performances of detection for hydrogen peroxide（H2O2）were studied by cyclic voltammetry,and amperometric response measurements.It was found that the graphene/ZnO exhibits high sensitivity for detection of hydrogen peroxide with the extrapolated lower detection limits of 1.0μmol/L,linear detection range from 10 to 120μmol/L（R2=0.99501）.

关 键 词：三维石墨烯 ZNO纳米棒 晶种诱导 双氧水 

分 类 号：TB332[一般工业技术—材料科学与工程]