溶胶-凝胶模板法制备氧化镍纳米线  

Sol-gel Template Synthesis of NiO Nanowires

作　　者：汤宏伟[1] 王蒋亮[1] 常照荣[1] 苗旺[1] 孙东[1] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453007

出　　处：《表面技术》2007年第4期15-16,19,共3页Surface Technology

基　　金：河南省科技厅基金资助项目(424270075)

摘　　要：采用二次阳极氧化的方法,以5%磷酸为电解液,制得具有一定厚度有序性较高的阳极氧化铝模板(AAO),结合溶胶-凝胶法在模板微孔内合成氧化镍纳米线。利用扫描电镜(SEM)对模板和纳米线材料的形貌进行了表征,结果表明:采用该方法成功制得线状的氧化镍,长度可达亚微米级,直径约为100nm,与AAO模板的孔径大小基本一致,因此可以通过调节AAO模板的孔径大小来实现氧化镍纳米线的可控生长。In our experiments, anodic aluminum oxide （ AAO） templates with an uniform pore diameter and periodicity were fabricated using a two-step oxidization method in a solution with 0.5% phosphoric acid. Then, arrays of manganese dioxide nanowires were prepared using AAO template by sol-gel method. The structure of AAO and NiO nanowires was charactered with SEM. The results show that the length of the NiO nanowires is about sub-micron-scale, and the diameter of the NiO nanowires is 100nm, which is consistent with the pore size of the AAO template. So the diameter of the NiO nanowires is determined by the pore size of the AAO template.

关 键 词：NiO纳米线 AAO模板 溶胶-凝胶法 孔径 

分 类 号：TQ153.6[化学工程—电化学工业]