The development of efficient sensors for security field and food quality control applications has gained an ever‐increasing attention for various end‐uses. In this context, this work reports on the preparation of β‐MnO₂ nanosystems by plasma enhanced‐chemical vapor deposition (PE‐CVD), using a fluorinated Mn(II) diamine‐diketonate as single‐source precursor for both Mn and F. Modulations of oxygen partial pressure enable to tailor not only the morphology and oxygen vacancy content, but also fluorine doping level of the resulting systems. For the first time, the gas sensing performances of PE‐CVD β‐MnO₂ nanomaterials are tested in the detection of acetonitrile, a poisonous chemical warfare agent (CWA) simulant, and ethylene, an important marker of fruit ripening. The obtained results demonstrate that the fabricated sensors can efficiently detect these analytes, with the best responses at moderate temperatures (≤200 °C), enhanced by a higher oxygen vacancy content and fluorine concentration. These features, coupled with the good selectivity and response times, candidate the developed systems as amenable platforms for practical applications.

中文翻译：

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血浆辅助生长的β-MnO2纳米系统作为安全和食品工业应用的气体传感器

针对安全领域和食品质量控制应用的高效传感器的开发已受到各种最终用途的越来越多的关注。在这种情况下，在制备β-MnO的这种工作报告_2个通过等离子体增强的纳米系统，化学气相沉积（PE-CVD），使用氟化锰（II）的二胺二酮作为Mn和F.单一来源前体氧分压的调节不仅可以调整形态和氧空位含量，而且可以调整所得系统的氟掺杂水平。PE‐CVD β‐MnO ₂的气敏性能首次纳米材料在有毒化学战剂（CWA）模拟物乙腈和水果成熟的重要标志物乙烯的检测中进行了测试。获得的结果表明，所制造的传感器可以有效检测这些分析物，并在中等温度（≤200°C）下具有最佳响应，并通过更高的氧空位含量和氟浓度来增强。这些功能，加上良好的选择性和响应时间，使开发的系统成为实际应用的理想平台。