点击次数：

论文类型：期刊论文

发表时间：2015-04-01

发表刊物：MATERIALS EXPRESS

收录刊物：SCIE、Scopus

卷号：5

期号：2

页面范围：105-112

ISSN号：2158-5849

关键字：Vanadium Oxides; V6O13; Ammonium Perchlorate; Nanomaterials; Hydrothermal Process; Thermal Properties

摘要：V6O13 nanobelts were successfully synthesized using V2O5, oxalic acid and water as the starting materials by a facile one-step hydrothermal approach for the first time. The samples were separately characterized by Energy dispersive spectrometer (EDS), X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed the as-obtained V6O13 consisted of a large quantity of uniform nanobelts with the typical length up to several micrometers, width about 150 similar to 250 nm, and thicknesses about 20 similar to 40 nm on average. It was found that oxalic acid played a crucial role in controlling the formation of phase-pure V6O13. The influence of V6O13 nanobelts on the thermal decomposition of ammonium perchlorate (AP) was investigated by the Thermo-Gravimetric Analysis and Differential Thermal Analysis (TGA/DTA). The thermal decomposition temperatures of AP in the presence of 1, 3, 5 and 10 wt% of V6O13 nanobelts were reduced by 41, 67, 85 and 97 degrees C, respectively. The results indicated that the adding amount of V6O13 nanobelts had greater influence on the thermal decomposition of AP, and this material had better effect in decomposition of AP as compared with other vanadium oxides.