Gas Sensing Based on Carbon Nanostructures

Raz Jelinek, ben gurion university, beer sheva, israel (razj@bgu.ac.il)

Development of broad-based, readily-implemented, sensitive, and selective gas and volatile organic compounds (VOCs) sensors is a significant challenge in environmental monitoring.  We describe new types of gas sensors comprising innovative carbon nanomaterials, specifically nano-porous graphene oxide (pGO) and carbon-dots.  In both cases we designed composite systems providing significant accessible surface area for adsorption of gas molecules.  In particular, we show that excellent sensitivity, selectivity, and dynamic range can be accomplished. 

References

- “In-situ synthesized Carbon-Dot-Aerogel Sensor for Aromatic Volatile Organic Compounds”, Susmita Dolai, Susanta Bhunia, Raz Jelinek, Sensors and Actuators B. Chemical, 2017, 241, 607-613.

- “Porous graphene oxide chemi-capacitor vapor sensor array”, Nagappa Teradal, Ahiud Morag, Sharon Marx, Raz Jelinek, Journal of Materials Chemistry C, 2017, 5, 1128-1135.