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首页> 外文期刊>RSC Advances >Facile synthesis of size-controlled Fe2O3 nanoparticle-decorated carbon nanotubes for highly sensitive H2S detection
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Facile synthesis of size-controlled Fe2O3 nanoparticle-decorated carbon nanotubes for highly sensitive H2S detection

机译：用于高灵敏度H2S检测的尺寸受控的Fe2O3纳米粒子修饰的碳纳米管的简便合成

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Hydrogen sulfide (H _(2) S) 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 H _(2) S gas sensor systems are becoming increasingly important in environmental monitoring and safety. In this report, we suggest the facile synthesis method of the Fe _(2) O _(3) particles uniformly decorated on carbon nanotubes (Fe _(2) O _(3) @CNT) to detect H _(2) S gas using oxidative co-polymerization (pyrrole and 3-carboxylated pyrrole) and heat treatment. The as prepared Fe _(2) O _(3) @CNT-based sensor electrode is highly sensitive (as low as 1 ppm), selective and stable to H _(2) S gas at 25 °C, which shows promise for operating in medical diagnosis and environment monitoring. Excellent performance of the Fe _(2) O _(3) @CNT is due to the unique morphology of the nanocomposites made from uniformly dispersed Fe _(2) O _(3) nanoparticles on the carbon surface without aggregation.
机译：硫化氢（H_（2）S）是现实生活中最丰富的有毒气体之一，会导致神经系统崩溃和细胞呼吸紊乱。因此，高灵敏度和选择性的H_（2）S气体传感器系统在环境监测和安全性中变得越来越重要。在本报告中，我们建议在碳纳米管（Fe _（2）O _（3）@CNT）上均匀装饰的Fe _（2）O _（3）颗粒的简便合成方法以检测H _（2）S气体采用氧化共聚（吡咯和3-羧化吡咯）并进行热处理。制备的Fe _（2）O _（3）@CNT基传感器电极具有很高的灵敏度（低至1 ppm），对25°C的H _（2）S气体具有选择性和稳定性，这显示了对从事医学诊断和环境监测。 Fe _（2）O _（3）@CNT的出色性能归因于由均匀分散在碳表面上的Fe _（2）O _（3）纳米粒子制成的纳米复合材料的独特形态，而没有聚集。

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