Nb_2O_5纳米纤维的尺寸与物相调控研究  

The investigation on the size and structure-control of Nb_2O_5 nanofibers

作　　者：童光庆[1] 杨树林[1] 王钊[1] 郭定和[1] 胡永明[1] 顾豪爽[1] 

机构地区：[1]湖北大学有机化工新材料湖北省协同创新中心,物理与电子科学学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2014年第5期456-458,共3页Journal of Hubei University：Natural Science

基　　金：国家自然科学基金(61274073);科技部863计划课题(2013AA031903)资助

摘　　要：采用静电纺丝技术制备不同晶体结构的Nb2O5纳米纤维,利用SEM和XRD技术对产物的形貌和结构进行表征.结果表明:所得Nb2O5纳米纤维晶化良好、尺寸分布均匀、长径比高且连续性好.通过调整静电纺丝的电压,可对纳米纤维的直径进行调控.调整退火温度和退火气氛,可分别获得伪六方、正交、单斜和正交/单斜混合相的纳米纤维.Nb2 O5 polycrystalline nanofibers with different cyrstal structures were prepared by electrospinning method .The morphology and structure of the nanofibers were characterized by SEM , XRD techniques .The results suggested that the as-synthesized nanofibers exhibited high crystallinity , uniform size-distribution ,high aspect ratio and excellent continuities .T he diameter of the nanofibers could be controlled by modifying the electrospinning voltage . The hexagonal phase ,orthorhombic phase ,monoclinic phase and orthorhombic/monoclinic mixing-phase nanofibers could be obtained at different annealing temperature and atmospheres .

关 键 词：静电纺丝 Nb2O5纳米纤维 尺寸调控 物相调控 

分 类 号：TB34[一般工业技术—材料科学与工程]