锐钛矿
色素敏化染料
材料科学
纳米棒
热重分析
化学工程
扫描电子显微镜
二氧化钛
结晶度
傅里叶变换红外光谱
透射电子显微镜
光催化
纳米技术
电解质
有机化学
化学
复合材料
电极
物理化学
工程类
催化作用
作者
Jaykrushna Das,Flávio S. Freitas,Ivana Radosavljević Evans,Ana F. Nogueira,Deepa Khushalani
摘要
A facile and simple process has been detailed for the synthesis of titanium glycerolate nanofibers using glycerol as both a solvent and a chelating agent. This complex has then been successfully converted to a high surface area anatase phase of titanium dioxide (TiO2) through solid state transformation without alteration in the overall fiber morphology. The structure, crystallinity and morphology of the products before and after transformation have been characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), solid-state 13C NMR and thermogravimetric analysis (TGA) measurements. As a demonstration of a potential application, these anatase nanorods (NRs) have been used as a photoanode to fabricate a dye-sensitized solar cell (DSSC) using a gel polymer electrolyte. Devices with efficiencies of 2.8% and 4.4% were recorded under light intensity of 100 mW/cm2 and 10 mW/cm2 illumination respectively.
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