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首页> 外文期刊>Journal of Materials Science >Preparation of gold/polyaniline/multiwall carbon nanotube nanocomposites and application in ammonia gas detection
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Preparation of gold/polyaniline/multiwall carbon nanotube nanocomposites and application in ammonia gas detection

机译:金/聚苯胺/多壁碳纳米管纳米复合材料的制备及其在氨气检测中的应用

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Composites of multiwall carbon nanotubes (MWNTs), polyaniline (PANI), and gold nanoparticles were prepared by one pot synthesis. Based on the interaction between aniline monomers and MWNTs, aniline molecules were adsorbed and polymerized on the surface of MWNTs. The nanocomposites were characterized by transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoemission spectroscopy (XPS). The sensors based on Au/PANI/MWNT nanocomposites were tested for on-line monitoring of ammonia gas. The results show that the as-prepared sensors have superior sensitivity, and good repeatability upon repeated exposure to ammonia gas.
机译:通过一锅法合成制备多壁碳纳米管(MWNTs),聚苯胺(PANI)和金纳米颗粒的复合材料。基于苯胺单体与多壁碳纳米管之间的相互作用,苯胺分子在多壁碳纳米管的表面吸附并聚合。纳米复合材料的特征在于透射电子显微镜(TEM),X射线衍射分析(XRD),傅里叶变换红外光谱(FT-IR)和X射线光发射光谱(XPS)。测试了基于Au / PANI / MWNT纳米复合材料的传感器,用于在线监测氨气。结果表明,所制备的传感器具有优异的灵敏度,并且在反复暴露于氨气时具有良好的可重复性。

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