Zhu Hongliang, Yao Kuihong, Zhang Hui, Yang Deren
Center of Materials Engineering, Zhejiang Sci-Tech University, Xiasha University Town, Hangzhou 310018, People's Republic of China.
J Phys Chem B. 2005 Nov 10;109(44):20676-9. doi: 10.1021/jp0511911.
Novel micrometer-sized indium oxyhydroxide (InOOH) hollow spheres were successfully synthesized via a citric acid (CA) assisted hydrothermal process. The morphology, crystal structure, and optical properties of the product were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and UV-vis diffuse reflectance spectroscopy (DRS). The optical band gap, E(g), was estimated to be 3.5 eV from the DRS spectrum, which is almost equal to that of indium oxide. Furthermore, on the basis of a series of SEM observations, phenomenological elucidation of a mechanism for the growth of the InOOH hollow spheres has been presented; key factors for the formation of the structures have been proposed.
通过柠檬酸（CA）辅助水热法成功合成了新型微米级氢氧化氧铟（InOOH）空心球。采用X射线衍射、透射电子显微镜、扫描电子显微镜、傅里叶变换红外光谱和紫外-可见漫反射光谱（DRS）对产物的形貌、晶体结构和光学性质进行了表征。根据DRS光谱估计光学带隙E(g)为3.5 eV，这与氧化铟的带隙几乎相等。此外，基于一系列扫描电子显微镜观察结果，对InOOH空心球的生长机理进行了现象学阐释；提出了形成这些结构的关键因素。
