晶相可控的ZrO_2纳米线的无卤制备及表征  

Fabrication and Characterization of ZrO_2 Nanofibers with Controllable Crystalline Phase by a Halid-free Approach

作　　者：吴杰[1] 陆艳芳[1] 刘杨[1] 于喆英[1] 辛柏福[1] 

机构地区：[1]黑龙江大学化学化工与材料学院功能无机材料化学教育部重点实验室,哈尔滨150080

出　　处：《高等学校化学学报》2015年第7期1403-1408,共6页Chemical Journal of Chinese Universities

基　　金：黑龙江省教育厅科学技术研究项目(批准号:12521436)资助~~

摘　　要：采用无卤法制备晶相可控的Zr O2纳米线.通过静电纺丝法制备聚乙烯吡咯烷酮(PVP)与Zr(NO3)4的复合纤维;再通过煅烧法在除去聚合物模板的同时制备Zr O2纳米线.采用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱(FTIR)仪及热重差热联用热分析仪(DSCTGA)对材料的晶相结构、形貌及热稳定性进行表征.通过改变煅烧温度,可以实现Zr O2纳米材料形貌及晶相组成的调控.ZrO2 nanofibers with controllable crystalline phase were fabricated via a halide-free strategy. Polyvinylpyrrolidone（PVP）/Zr （NO3 ）4 precursor nanofibers were first synthesized using electrospinning method. After sintering such precursor nanofibers at high temperature, the PVP and Zr（ NO3 ）4 decomposed and the resulting ZrO2 nanofibers formed. The crystal structure, morphology and thermal stability were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and thermogravim- etric analysis. The morphology and crystal structure of ZrO2 nanomaterials could be tuned by controlling calcination temperature.

关 键 词：氧化锆 纳米线 静电纺丝 无卤法 

分 类 号：O631[理学—高分子化学]