Ionic Liquid-Based Optical and Electrochemical Carbon Dioxide Sensors

Sensors

Kamalakanta Behera¹  Shubha Pandey²  Anu Kadyan¹  Siddharth Pandey¹  Xiangqun Zeng³  Michael T. Carter³ 

[1] Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;Department of Science and Technology, Ministry of Science and Technology, Technology Bhawan, New Mehrauli Road, New Delhi 110016, India;;Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India

关键词: ionic liquids;    carbon dioxide;    sensors;    optical sensors;    electrochemical sensors;   

DOI  :  10.3390/s151229813

来源: mdpi

【 摘 要 】

Due to their unusual physicochemical properties (e.g., high thermal stability, low volatility, high intrinsic conductivity, wide electrochemical windows and good solvating ability), ionic liquids have shown immense application potential in many research areas. Applications of ionic liquid in developing various sensors, especially for the sensing of biomolecules, such as nucleic acids, proteins and enzymes, gas sensing and sensing of various important ions, among other chemosensing platforms, are currently being explored by researchers worldwide. The use of ionic liquids for the detection of carbon dioxide (CO₂) gas is currently a major topic of research due to the associated importance of this gas with daily human life. This review focuses on the application of ionic liquids in optical and electrochemical CO₂ sensors. The design, mechanism, sensitivity and detection limit of each type of sensor are highlighted in this review.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.