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A new application of functionalized platinum nanoparticles as chemiresistor coating

机译:功能化铂纳米粒子作为化学电阻涂层的新应用

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Chemiresistor sensor based on Pt nanoparticles stabilized with 11-mercaptoundecanoic acid was developed for detection of some volatile organic compounds (VOCs). This sensor was prepared by drop coating technique onto interdigitated microelectrode. This film displayed linear current-voltage (I-V) characteristics and decrease the resistance at room temperature. The chemiresistive sensing properties were measured over a concentration range of 1.4-400 mg L~(-1) for methanol, ethanol, ethyl acetate and acetone vapors. The results showed good sensitivity to methanol vapors and low detection limits for all examined vapors.
机译:基于11-巯基十一酸稳定的Pt纳米颗粒的Chemiresistor传感器被开发用于检测某些挥发性有机化合物(VOC)。该传感器是通过滴涂技术在指状微电极上制备的。该膜表现出线性电流-电压(I-V)特性,并在室温下降低了电阻。在1.4-400 mg L〜(-1)的浓度范围内,对甲醇,乙醇,乙酸乙酯和丙酮蒸气测量了化学传感特性。结果显示对甲醇蒸气具有良好的灵敏度,并且对所有检查的蒸气均具有较低的检测限。

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