中文摘要：

采用V_2O_5和硼酸为原材料，草酸为还原剂，在水热条件下，成功制备出硼（B）掺杂VO_2（B）纳米棒，经Ar气环境退火后，得到了V_1-xB_xO_2（M）系列样品。样品的结构、形貌和相转变温度分别用X-射线粉末衍射（XRD）仪、扫描电子显微镜（SEM）和差示扫描量热仪（DSC）等进行表征。用X-射线光电子谱（XPS）来表征样品的组份和元素的价态，样品的红外光吸收谱也被测量。结果显示，当B掺杂达到2．0at％时，V_1-xB_xO_2（M）相的转变温度升高到75．03℃。这个升高的相转变温度可归因于B^3＋替代V^4＋引起VO_6八面体的品格畸变，以及局域晶格电子密度的降低。

英文摘要：

The Boron-doped VO2 （B） nanorods were synthesized via hydrothermal method using V_2O_5, boron acid and oxalic acid as raw materials. The V_1-xB_xO_2 （M） samples were obtained by the post- annealed the B-doped VO_2 （B） nanorods in argon. The structures, morphologies and optical properties were characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM） and differential scanning calorimetry （DSC）. The composition of the nanorods and the oxidation state of the vanadium were investigated by X-ray photoelectron spectroscopy （XPS）, the infrared absorption spectrum of the B- doped VO_2 were also measured. The results indicate that the phase transition temperature of V_1-xB_xO_2 （M） samples increased to 75.03 ℃ for the Boron content being 2.0at%. This increase of the phase transition temperature in B-doped VO_2 （M） could be ascribed to the lattice distortion of VO6 octahedra and/or lower local electron density in VO_2 （M） lattice where V^4＋ are substituted by B^3＋.