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Facile synthesis of size-controlled Fe2O3 nanoparticle-decorated carbon nanotubes for highly sensitive H2S detection

机译:尺寸控制Fe2O3纳米颗粒装饰碳纳米管的容易合成,用于高敏感H2S检测

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摘要

Hydrogen sulfide (H2S) is one of the most plentiful toxic gases in a real-life and causes a collapse of the nervous system and a disturbance of the cellular respiration. Therefore, highly sensitive and selective H2S gas sensor systems are becoming increasingly important in environmental monitoring and safety. In this report, we suggest the facile synthesis method of the Fe2O3 particles uniformly decorated on carbon nanotubes (Fe2O3@CNT) to detect H2S gas using oxidative co-polymerization (pyrrole and 3-carboxylated pyrrole) and heat treatment. The as prepared Fe2O3@CNT-based sensor electrode is highly sensitive (as low as 1 ppm), selective and stable to H2S gas at 25 degrees C, which shows promise for operating in medical diagnosis and environment monitoring. Excellent performance of the Fe2O3@CNT is due to the unique morphology of the nanocomposites made from uniformly dispersed Fe2O3 nanoparticles on the carbon surface without aggregation.
机译:硫化氢(H2S)是现实生活中最丰富的毒性气体之一,并导致神经系统塌陷和细胞呼吸的干扰。 因此,高敏感和选择性H2S气体传感器系统在环境监测和安全方面变得越来越重要。 在本报告中,我们建议使用氧化共聚(吡咯和3-羧化吡咯)和热处理以均匀地装饰在碳纳米管(Fe2O3 @ CNT)上均匀装饰的Fe2O3颗粒的容易合成方法以检测H2S气体。 作为制备的Fe2O3 @ CNT的传感器电极是高敏感的(低至1ppm),选择性和稳定于25摄氏度的H2S气体,这表明了在医学诊断和环境监测中运行的承诺。 Fe2O3 @ CNT的优异性能是由于纳米复合材料的独特形态,由碳表面上的均匀分散的Fe2O3纳米颗粒在没有聚集的情况下制成的纳米复合物。

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  • 来源
    《RSC Advances》 |2018年第56期|共7页
  • 作者单位

    Seoul Natl Univ Coll Engn Sch Chem &

    Biol Engn 599 Gwanangno Seoul 151742 South Korea;

    Gachon Univ Coll Bionano Dept Nanochem 1342 Seongnamdaero Seongnam Si 13120 Gyeonggi Do South Korea;

    Seoul Natl Univ Coll Engn Sch Chem &

    Biol Engn 599 Gwanangno Seoul 151742 South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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