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Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene).
ACS Appl Mater Interfaces 2017; 9(42):37184-37190AA

Abstract

Wearable gas sensors have received lots of attention for diagnostic and monitoring applications, and two-dimensional (2D) materials can provide a promising platform for fabricating gas sensors that can operate at room temperature. In the present study, the room temperature gas-sensing performance of Ti3C2Tx nanosheets was investigated. 2D Ti3C2Tx (MXene) sheets were synthesized by removal of Al atoms from Ti3AlC2 (MAX phases) and were integrated on flexible polyimide platforms with a simple solution casting method. The Ti3C2Tx sensors successfully measured ethanol, methanol, acetone, and ammonia gas at room temperature and showed a p-type sensing behavior. The fabricated sensors showed their highest and lowest response toward ammonia and acetone gas, respectively. The limit of detection of acetone gas was theoretically calculated to be about 9.27 ppm, presenting better performance compared to other 2D material-based sensors. The sensing mechanism was proposed in terms of the interactions between the majority charge carriers of Ti3C2Tx and gas species.

Authors+Show Affiliations

Materials Research and Education Center, Auburn University , Auburn, Alabama 36849, United States.Materials Research and Education Center, Auburn University , Auburn, Alabama 36849, United States.Materials Research and Education Center, Auburn University , Auburn, Alabama 36849, United States.Department of Chemical and Biological Engineering, Gachon University , Seongnam, 13120, Republic of Korea.Materials Research and Education Center, Auburn University , Auburn, Alabama 36849, United States.Materials Research and Education Center, Auburn University , Auburn, Alabama 36849, United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28953355

Citation

Lee, Eunji, et al. "Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene)." ACS Applied Materials & Interfaces, vol. 9, no. 42, 2017, pp. 37184-37190.
Lee E, VahidMohammadi A, Prorok BC, et al. Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene). ACS Appl Mater Interfaces. 2017;9(42):37184-37190.
Lee, E., VahidMohammadi, A., Prorok, B. C., Yoon, Y. S., Beidaghi, M., & Kim, D. J. (2017). Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene). ACS Applied Materials & Interfaces, 9(42), pp. 37184-37190. doi:10.1021/acsami.7b11055.
Lee E, et al. Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene). ACS Appl Mater Interfaces. 2017 Oct 25;9(42):37184-37190. PubMed PMID: 28953355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene). AU - Lee,Eunji, AU - VahidMohammadi,Armin, AU - Prorok,Barton C, AU - Yoon,Young Soo, AU - Beidaghi,Majid, AU - Kim,Dong-Joo, Y1 - 2017/10/11/ PY - 2017/9/28/pubmed PY - 2017/9/28/medline PY - 2017/9/28/entrez KW - 2D materials KW - MXene KW - Ti3C2Tx KW - room temperature sensor KW - wearable gas sensor SP - 37184 EP - 37190 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 9 IS - 42 N2 - Wearable gas sensors have received lots of attention for diagnostic and monitoring applications, and two-dimensional (2D) materials can provide a promising platform for fabricating gas sensors that can operate at room temperature. In the present study, the room temperature gas-sensing performance of Ti3C2Tx nanosheets was investigated. 2D Ti3C2Tx (MXene) sheets were synthesized by removal of Al atoms from Ti3AlC2 (MAX phases) and were integrated on flexible polyimide platforms with a simple solution casting method. The Ti3C2Tx sensors successfully measured ethanol, methanol, acetone, and ammonia gas at room temperature and showed a p-type sensing behavior. The fabricated sensors showed their highest and lowest response toward ammonia and acetone gas, respectively. The limit of detection of acetone gas was theoretically calculated to be about 9.27 ppm, presenting better performance compared to other 2D material-based sensors. The sensing mechanism was proposed in terms of the interactions between the majority charge carriers of Ti3C2Tx and gas species. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/28953355/Room_Temperature_Gas_Sensing_of_Two_Dimensional_Titanium_Carbide__MXene__ L2 - https://dx.doi.org/10.1021/acsami.7b11055 DB - PRIME DP - Unbound Medicine ER -