Assembly of Pt nanoparticles on electrospun In₂O₃ nanofibers for H₂S detection

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• 作者：Wei Zheng ; Xiaofeng Lu ; Wei Wang ; Zhenyu Li ; Hongnan Zhang ; Zhaojie Wang ; Xiuru Xu ; Shangyu Li ; Ce Wang
• 关键词：Indium oxide ; Electrospinning ; Sensor ; Hydrogen sulfide ; Nanofibers ; Nanoparticles
• 刊名：Journal of Colloid and Interface Science
• 出版年：2009
• 出版时间：15 October 2009
• 年：2009
• 卷：338
• 期：2
• 页码：366-370
• 全文大小：548 K

文摘

In this paper, we presented a simple and effective solution route to deposit Pt nanoparticles on electrospun In₂O₃ nanofibers for H₂S gas detection. The morphology and chemical structure of the as-prepared samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectra (XPS). The results showed that large quantities of In₂O₃ nanofibers with diameters about from 60 to 100 nm were obtained and the surface of them was decorated with Pt nanoparticles (5–10 nm in size). The In₂O₃ nanofibers decorated by Pt nanoparticles exhibited excellent gas sensing properties to H₂S, such as high sensitivity, good selectivity and fast response at relatively low temperature.