Methods and approaches of utilizing ionic liquids as gas sensing materials.
Methods and approaches of utilizing ionic liquids as gas sensing materials.
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作者：
Rehman A;Zeng X
对于环境和民用基础设施，气候和能源，健康与安全，工业和商业领域的广泛应用，天然气监测具有越来越重要的意义。即使有许多可用的气体检测设备和系统，对更好的检测技术的需求不仅满足了高分析标准，而且还满足了额外的设备需求（例如，在田间条件下，低成本，小型，小型，智能，更多的移动性），需要持续努力在开发新的方法和方法中持续努力。作为气体传感器开发的潜在传感材料，离子液体（ILS）引起了极大的兴趣。完全由离子组成，具有广泛的结构和功能多样性，即双功能（有机/无机），双相性（固体/液体）和双质体（溶剂/电解质），它们具有互补的属性和所需的变异性，可以使许多感官的组合能力构成互补的可变性。 The emphasis of this review is to describe molecular design and control of IL interface materials to provide selective and reproducible response and to synergistically integrate IL sensing materials with low cost and low power electrochemical, piezoelectric/QCM and optical transducers to address many gas detection challenges (e.g., sensitivity, selectivity, reproducibility, speed, stability, cost, sensor miniaturization, and 鲁棒性）。我们进一步展示了例子，以证明理解IL中理化和电化学反应的机制和原理的重要性，然后将这些概念与开发新的感应方法和方法联系起来。通过这样做，我们希望使用简单的传感设计和灵活的传感器结构来刺激对感应机制以及新的传感器系统开发和集成的基本了解，从科学操作和用户界面方面进行小型和用户界面，这些操作可以小型化并与现代无线无线监控技术相连，以实现现行市场的应用，以实现现有的市场应用程序。
Gas monitoring is of increasing significance for a broad range of applications in the fields of environmental and civil infrastructures, climate and energy, health and safety, industry and commerce. Even though there are many gas detection devices and systems available, the increasing needs for better detection technologies that not only satisfy the high analytical standards but also meet additional device requirements (e.g., being robust to survive under field conditions, low cost, small, smart, more mobile), demand continuous efforts in developing new methods and approaches for gas detection. Ionic Liquids (ILs) have attracted a tremendous interest as potential sensing materials for the gas sensor development. Being composed entirely of ions and with a broad structural and functional diversity, i.e., bifunctional (organic/inorganic), biphasic (solid/liquid) and dual-property (solvent/electrolyte), they have the complementing attributes and the required variability to allow a systematic design process across many sensing components to enhance sensing capability especially for miniaturized sensor system implementation. The emphasis of this review is to describe molecular design and control of IL interface materials to provide selective and reproducible response and to synergistically integrate IL sensing materials with low cost and low power electrochemical, piezoelectric/QCM and optical transducers to address many gas detection challenges (e.g., sensitivity, selectivity, reproducibility, speed, stability, cost, sensor miniaturization, and robustness). We further show examples to justify the importance of understanding the mechanisms and principles of physicochemical and electrochemical reactions in ILs and then link those concepts to developing new sensing methods and approaches. By doing this, we hope to stimulate further research towards the fundamental understanding of the sensing mechanisms and new sensor system development and integration, using simple sensing designs and flexible sensor structures both in terms of scientific operation and user interface that can be miniaturized and interfaced with modern wireless monitoring technologies to achieve specifications heretofore unavailable on current markets for the next generation of gas sensor applications.
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