Biomorphic synthesis and gas response of In2O3 microtubules using cotton fibers as templates
Biomorphic synthesis and gas response of In2O3 microtubules using cotton fibers as templates
复制标题
以棉纤维为模板的In2O3微管的生物形态合成及气体响应
DOI：
10.1016/j.snb.2012.04.054
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发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
Zhongxi Yang
中科院分区：
文献类型：
--
作者：
Peng Song;Qi Wang;Zhongxi Yang
以棉花为模板制备了生物形态的In 2 O3微管。用X射线衍射和扫描电子显微镜进行了结构和显微镜表征。XRD图谱证实了立方相In 2 O3的形成。扫描电子显微镜结果表明，所制备的In 2 O3微管长30-60μm，宽8-10μm，厚约300 nm。In 2 O3微管由大量球形In 2 O3纳米晶组成，尺寸几乎均匀，约为30 nm。研究了In 2 O3纳米晶的气敏性能。结果表明，500°C焙烧的In 2 O3微管对甲醛具有良好的选择性，在260°C时响应速度快，灵敏度高。
Biomorphic In2O3microtubules were prepared using cotton as biotemplates. The structural and microscopy characterization has been carried out with X-ray diffraction and scanning electron microscopy. XRD patterns confirm the formation of In2O3with cubic phase. The results of scanning electron microscopy revealed that the obtained In2O3microtubules are in the range of 30–60μm in length, 8–10μm in width, and about 300nm in thickness. The In2O3microtubules were composed of numerous spherical In2O3nanocrystals with the nearly uniform size about 30nm. The gas sensing performance of as-prepared In2O3nanocrystals was investigated. It is found that In2O3microtubules calcined at 500°C exhibit good selectivity for formaldehyde with rapid response and high sensitivity at 260°C.
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