Current Advances of CO Sensing Based on Low Dimensional Materials.

Area of Science:

• Materials Science
• Environmental Science
• Chemical Engineering

Background:

• Carbon monoxide (CO) poses significant health and environmental risks.
• Early detection of CO is critical, particularly during thermal runaway events in automotive lithium batteries, to prevent severe consequences.
• Current research focuses on developing efficient, sensitive, and reliable CO sensors.

Purpose of the Study:

• To review the progress in developing efficient, sensitive, and reliable carbon monoxide (CO) sensors.
• To categorize CO sensors based on their signal output (electrical and optical).
• To provide insights into sensing mechanisms and performance for developing advanced CO detection systems.

Main Methods:

• Review of electrochemical, optical, and resistive sensing materials for CO detection.
• Focus on low-dimensional materials due to their large specific surface area and active sites.
• Categorization of sensors into electrical and optical signal types based on sensor signals.

Main Results:

• Low-dimensional materials offer abundant active sites, enhancing sensor performance.
• Sensors are categorized into electrical and optical signal types.
• Systematic introduction of sensing mechanisms and performance characteristics for various CO sensors.

Conclusions:

• Advancements in CO sensor technology, particularly using low-dimensional materials, are crucial for early warning and monitoring.
• Developing appropriate CO sensors for specific applications can maximize early warning capabilities.
• Effective CO monitoring is essential for reducing industrial losses and ensuring personnel safety and health.