TY - JOUR
T1 - Selective Toluene Detection with Mo2CTx MXene at Room Temperature
AU - Guo, Wenzhe
AU - Surya, Sandeep Goud
AU - Babar, Vasudeo Pandurang
AU - Ming, Fangwang
AU - Sharma, Sitansh
AU - Alshareef, Husam N.
AU - Schwingenschlögl, Udo
AU - Salama, Khaled N.
N1 - KAUST Repository Item: Exported on 2020-12-16
Acknowledgements: The research reported in this publication was supported by funding from the King Abdullah University of Science and Technology (KAUST). For computer time, this research used the resources of the Supercomputing Laboratory at KAUST. The authors are thankful to the staff of the KAUST core labs (thin-film, nano-fabrication, imaging, and characterization) for their help. We acknowledge the Center Collaborative Fund of the Advanced Membranes and Porous Materials Center at KAUST.
PY - 2020/12/8
Y1 - 2020/12/8
N2 - MXenes are a promising class of two-dimensional materials with several potential applications, including energy storage, catalysis, electromagnetic interference shielding, transparent electronics, and sensors. Here, we report a novel Mo2CTx MXene sensor for the successful detection of volatile organic compounds (VOCs). The proposed sensor is a chemiresistive device fabricated on a Si/SiO2 substrate using photolithography. The impact of various MXene process conditions on the performance of the sensor is evaluated. The VOCs, such as toluene, benzene, ethanol, methanol, and acetone, are studied at room temperature with varying concentrations. Under optimized conditions, the sensor demonstrates a detection limit of 220 ppb and a sensitivity of 0.0366 Ω/ppm at a toluene concentration of 140 ppm. It exhibits an excellent selectivity toward toluene against the other VOCs. Ab initio simulations demonstrate selectivity toward toluene in line with the experimental results.
AB - MXenes are a promising class of two-dimensional materials with several potential applications, including energy storage, catalysis, electromagnetic interference shielding, transparent electronics, and sensors. Here, we report a novel Mo2CTx MXene sensor for the successful detection of volatile organic compounds (VOCs). The proposed sensor is a chemiresistive device fabricated on a Si/SiO2 substrate using photolithography. The impact of various MXene process conditions on the performance of the sensor is evaluated. The VOCs, such as toluene, benzene, ethanol, methanol, and acetone, are studied at room temperature with varying concentrations. Under optimized conditions, the sensor demonstrates a detection limit of 220 ppb and a sensitivity of 0.0366 Ω/ppm at a toluene concentration of 140 ppm. It exhibits an excellent selectivity toward toluene against the other VOCs. Ab initio simulations demonstrate selectivity toward toluene in line with the experimental results.
UR - http://hdl.handle.net/10754/666388
UR - https://pubs.acs.org/doi/10.1021/acsami.0c16302
U2 - 10.1021/acsami.0c16302
DO - 10.1021/acsami.0c16302
M3 - Article
C2 - 33289555
SN - 1944-8244
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
ER -