超长氧化钒纳米线的制备与表征  

Synthesis and Characterization of Ultra-Long V_2O_5 Nanowire

作　　者：吴建栋[1] 吴广明[1] 高国华[1] 杨辉宇[1] 周小卫[1] 王继超[1] 

机构地区：[1]上海市特殊人工微结构材料与技术重点实验室,上海200092

出　　处：《真空科学与技术学报》2013年第10期1032-1036,共5页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金项目(No.51072137;50802064;51102183;51272179);上海市科委基础研究重点项目(11nm0501300);国家科技支撑计划(2009BAC62B02);教育部博士点基金项目(20100072110054)

摘　　要：以V2O5和H2O2为原料,乙二胺为模板剂,采用溶胶凝胶法结合水热法制备了含有模板剂的超长氧化钒纳米线,利用傅里叶红外光谱仪、拉曼光谱仪和X射线衍射仪分析了材料的结构特征。采用扫描电子显微镜(SEM)对形貌进行了表征。采用不同温度对样品进行了热处理,并综合分析了热处理温度对材料形貌和结构的影响。从SEM测试结果可以看出,本文制备的V2O5纳米线的最长可达40μm。结果表明,通过300℃热处理即可成功去除有机模板剂,得到正交相V2O5纳米线。最后,用蓝电测试系统测试了V2O5纳米线的电化学性能。The ultra-long V2O5 Nanowire was fabricated by sol-gel technique and hydrothermal reaction with V2O5 powder and H2O2 as the reactants,and ethidenediamine as the template. The impacts of the synthesis conditions, including the hydrothermal reaction temperature and time,concentrations of the solution, and drying and sintering tempemtm＇es, on the microstmctures of the nanowires were studied. The V2O5 Nanowires were characterized with X-ray diffraction,scanning electron microscopy, Fourier transform infrared and Raman spectroscopy. The preliminary results show that under the optimized synthesis conditions, the length of the orthorhombic crystal phased V2O5 nanowires can be up to 40 μm. Its electrochemical properties, as a cathode material of Li-ion cell, were also tentatively evaluated.

关 键 词：溶胶凝胶 水热 超长 氧化钒纳米线 

分 类 号：O614.51[理学—无机化学]