摘要:以价格低廉的Fe3O4纳米颗粒为填料,聚(3,4-乙烯二氧噻吩):聚(苯乙烯磺酸)(PEDOT:PSS)为基材制备复合材料,并采用高氯酸(HClO4)对其进行后处理,获得PEDOT:PSS/Fe3O4柔性自支撑薄膜。利用扫描电子显微镜(SEM)、X-射线衍射仪(XRD)、X射线电子...
采用熔融法制备了Nb_(2)O_(5) -P_(2)O_(5)-Na_(2)O-BaO系铌-磷酸盐玻璃,通过热处理获得了同体系微晶玻璃.利用Raman光谱分析了玻璃的结构.利用DSC确定了玻璃的特征温度.根据结晶峰温度最低法确定了该体系玻璃的最佳形核参数为700℃,0.5 h.利用扫描电子显微镜分析了玻璃与微晶玻璃的微观结构.利用XR...
含CuO的Na_2O-B_2O_3-SiO_2玻璃的Raman光谱 本文借助Raman光谱研究了含CuO的Na_2O-B_2O_3-SiO_2 玻璃的结构。分析表明如下:(1)当Na_2O/B_2O_3≤0.4、SiO_2/B_2O_3≤0.6时,玻璃网络由四硼酸盐、[SiO_4]、二硼酸盐... 金宜芬,陈祥生 - 《硅酸盐学报》 被引量: 21发表: 1984年 The ...
Using the Raman-spectroscopy method, we have studied concentration-phase transitions in the solid solutions Li_xNa_(1-x)Ta_(0.1)Nb_(0.9)O_3, Li_(0.12)Na_(0.88)Ta_yNb_(1-y)O_3, and NaTa_yNb_(1-y)O_3 (x = 0-0.16, y = 0-1). It has been revealed that, for the solid ...
X-ray diffraction (XRD), Raman and Fourier transform infrared (FT-IR) spectra, fluorescent decay times, photoluminescence (PL) including temperature-dependent PL properties and scanning electron microscopy (SEM) were used to characterize the as-prepared samples. In Eu2+ singly-doped NLSO samples,...
Raman studies of a di-silicate glass system [26] and the 29Si MAS NMR studies of 45S5 bioglass doped with Nb [27] showed that Nb5+ ions cross-link several oxygen sites, breaking Si–O–Si bonds to form various polyhedral [Nb(OM)6_y(OSi)y], where 1 ≤ y ≤ 5 and M...
This mineral may contain some additional non-structural molecular H2O, which is detected by the Penfield method and Raman spectroscopy. However, by analogy with similar minerals (such as murmanite, selivanovaite, etc.), the crystal-chemical formula of chirvinskyite does not take these H2O ...
Infrared and Raman spectra of the four hydrogen-deuterium isotopomers of the cyclopropenyl cation, CH/sup +/, CD/sup +/, CHD/sup +/, and CDH/sup +/, have b... NC Craig,J Pranata,SJ Reinganum,... 被引量: 1发表: 0年 An ab initio study of the geometry, energy, and selected...
Structure and bonding in this new series of potassium compounds are discussed and compared with those in the respective sodium phases, including aspects like anion geometry and dynamics (as observed by Raman spectroscopy), packing in the crystals, UV/Vis spectroscopy and FP-LAPW band structure ...
如Fig. 4所示,原位Raman揭示PHC-700在循环过程中具有更高的结构稳定性;原位NMR测试发现在循环过程中P-C键发生显著变化,且在完全放电态峰宽化达到最大值;此外,还在-300 ppm处出现了新峰,对应于LixPCy,证明P-C键的电化学活性强于P-O键,且...