Rezk Marwan Y, Sharma Jyotsna, Gartia Manas Ranjan
Department of Petroleum Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
Nanomaterials (Basel). 2020 Nov 13;10(11):2251. doi: 10.3390/nano10112251.
The detection of carbon dioxide (CO) is critical for environmental monitoring, chemical safety control, and many industrial applications. The manifold application fields as well as the huge range of CO concentration to be measured make CO sensing a challenging task. Thus, the ability to reliably and quantitatively detect carbon dioxide requires vastly improved materials and approaches that can work under different environmental conditions. Due to their unique favorable chemical, optical, physical, and electrical properties, nanomaterials are considered state-of-the-art sensing materials. This mini-review documents the advancement of nanomaterial-based CO sensors in the last two decades and discusses their strengths, weaknesses, and major applications. The use of nanomaterials for CO sensing offers several improvements in terms of selectivity, sensitivity, response time, and detection, demonstrating the advantage of using nanomaterials for developing high-performance CO sensors. Anticipated future trends in the area of nanomaterial-based CO sensors are also discussed in light of the existing limitations.
二氧化碳（CO）的检测对于环境监测、化学安全控制以及许多工业应用至关重要。众多的应用领域以及需要测量的二氧化碳浓度范围极广，使得二氧化碳传感成为一项具有挑战性的任务。因此，可靠且定量地检测二氧化碳的能力需要大幅改进能够在不同环境条件下工作的材料和方法。由于其独特的有利化学、光学、物理和电学性质，纳米材料被视为最先进的传感材料。本综述记录了过去二十年基于纳米材料的二氧化碳传感器的进展，并讨论了它们的优点、缺点和主要应用。使用纳米材料进行二氧化碳传感在选择性、灵敏度、响应时间和检测方面有多项改进，证明了使用纳米材料开发高性能二氧化碳传感器的优势。鉴于现有局限性，还讨论了基于纳米材料的二氧化碳传感器领域未来的预期趋势。
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