A review on recent advances of CNTs as gas sensors
Sensor Review, 2017•emerald.com
Purpose This review paper aims to focus on recent advances of carbon nanotubes (CNTs) to
produce gas sensors. Gas sensors are widely used for monitoring hazardous gas leakages
and emissions in the industry, households and other areas. For better safety and a healthy
environment, it is highly desirable to have gas sensors with higher accuracy and enhanced
sensing features. Design/methodology/approach In this review, the authors focus on recent
contributions of CNTs to the technology for developing different types of gas sensors. The …
produce gas sensors. Gas sensors are widely used for monitoring hazardous gas leakages
and emissions in the industry, households and other areas. For better safety and a healthy
environment, it is highly desirable to have gas sensors with higher accuracy and enhanced
sensing features. Design/methodology/approach In this review, the authors focus on recent
contributions of CNTs to the technology for developing different types of gas sensors. The …
Purpose
This review paper aims to focus on recent advances of carbon nanotubes (CNTs) to produce gas sensors. Gas sensors are widely used for monitoring hazardous gas leakages and emissions in the industry, households and other areas. For better safety and a healthy environment, it is highly desirable to have gas sensors with higher accuracy and enhanced sensing features.
Design/methodology/approach
In this review, the authors focus on recent contributions of CNTs to the technology for developing different types of gas sensors. The design, fabrication process and sensing mechanism of each gas sensor are summarized, together with their advantages and disadvantages.
Findings
Nowadays, CNTs are well-known materials which have attracted a significant amount of attention owing to their excellent electrical, electronic and mechanical properties. On exposure to various gases, their properties allow the detection of gases using different methods. Therefore, over recent years, researchers have developed several different types of gas sensors along with other types of sensors for temperature, strain, pressure, etc.
Originality/value
The main purpose of this review is to introduce CNTs as candidates for future research in the field of gas sensing applications and to focus on current technical challenges associated with CNT-based gas sensors.
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