Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview
Detecting and monitoring air-polluting gases such as carbon monoxide (CO), nitrogen oxides (NO<sub>x</sub>), and sulfur oxides (SO<sub>x</sub>) are critical, as these gases are toxic and harm the ecosystem and the human health. Therefore, it is necessary to design high-perfor...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/6/1992 |
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| author | Heriberto Cruz-Martínez Hugo Rojas-Chávez Fernando Montejo-Alvaro Yesica A. Peña-Castañeda Pastor T. Matadamas-Ortiz Dora I. Medina |
| author_facet | Heriberto Cruz-Martínez Hugo Rojas-Chávez Fernando Montejo-Alvaro Yesica A. Peña-Castañeda Pastor T. Matadamas-Ortiz Dora I. Medina |
| author_sort | Heriberto Cruz-Martínez |
| collection | DOAJ |
| description | Detecting and monitoring air-polluting gases such as carbon monoxide (CO), nitrogen oxides (NO<sub>x</sub>), and sulfur oxides (SO<sub>x</sub>) are critical, as these gases are toxic and harm the ecosystem and the human health. Therefore, it is necessary to design high-performance gas sensors for toxic gas detection. In this sense, graphene-based materials are promising for use as toxic gas sensors. In addition to experimental investigations, first-principle methods have enabled graphene-based sensor design to progress by leaps and bounds. This review presents a detailed analysis of graphene-based toxic gas sensors by using first-principle methods. The modifications made to graphene, such as decorated, defective, and doped to improve the detection of NO<sub>x</sub>, SO<sub>x</sub>, and CO toxic gases are revised and analyzed. In general, graphene decorated with transition metals, defective graphene, and doped graphene have a higher sensibility toward the toxic gases than pristine graphene. This review shows the relevance of using first-principle studies for the design of novel and efficient toxic gas sensors. The theoretical results obtained to date can greatly help experimental groups to design novel and efficient graphene-based toxic gas sensors. |
| first_indexed | 2024-03-10T13:19:18Z |
| format | Article |
| id | doaj.art-687fdd202d6844c9a395e87fc4f5c56f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:19:18Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-687fdd202d6844c9a395e87fc4f5c56f2023-11-21T10:09:46ZengMDPI AGSensors1424-82202021-03-01216199210.3390/s21061992Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical OverviewHeriberto Cruz-Martínez0Hugo Rojas-Chávez1Fernando Montejo-Alvaro2Yesica A. Peña-Castañeda3Pastor T. Matadamas-Ortiz4Dora I. Medina5Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, MexicoTecnológico Nacional de México, Instituto Tecnológico de Tláhuac II, Camino Real 625, Tláhuac, Ciudad de México 13508, MexicoTecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, MexicoColegio de Ciencia y Tecnología, Universidad Autónoma de la Ciudad de México, Av. Fray Servando Teresa de Mier 92, Cuauhtémoc, Ciudad de México 06080, MexicoInstituto Politécnico Nacional, CIIDIR-OAXACA, Hornos No. 1003, Noche Buena, Santa Cruz Xoxocotlán 71230, MexicoTecnologico de Monterrey, School of Engineering and Sciences, Atizapan de Zaragoza, Estado de México 52926, MexicoDetecting and monitoring air-polluting gases such as carbon monoxide (CO), nitrogen oxides (NO<sub>x</sub>), and sulfur oxides (SO<sub>x</sub>) are critical, as these gases are toxic and harm the ecosystem and the human health. Therefore, it is necessary to design high-performance gas sensors for toxic gas detection. In this sense, graphene-based materials are promising for use as toxic gas sensors. In addition to experimental investigations, first-principle methods have enabled graphene-based sensor design to progress by leaps and bounds. This review presents a detailed analysis of graphene-based toxic gas sensors by using first-principle methods. The modifications made to graphene, such as decorated, defective, and doped to improve the detection of NO<sub>x</sub>, SO<sub>x</sub>, and CO toxic gases are revised and analyzed. In general, graphene decorated with transition metals, defective graphene, and doped graphene have a higher sensibility toward the toxic gases than pristine graphene. This review shows the relevance of using first-principle studies for the design of novel and efficient toxic gas sensors. The theoretical results obtained to date can greatly help experimental groups to design novel and efficient graphene-based toxic gas sensors.https://www.mdpi.com/1424-8220/21/6/1992pristine graphenedefective graphenedoped graphenedensity functional theoryfirst principle studiestoxic gas sensors |
| spellingShingle | Heriberto Cruz-Martínez Hugo Rojas-Chávez Fernando Montejo-Alvaro Yesica A. Peña-Castañeda Pastor T. Matadamas-Ortiz Dora I. Medina Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview Sensors pristine graphene defective graphene doped graphene density functional theory first principle studies toxic gas sensors |
| title | Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview |
| title_full | Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview |
| title_fullStr | Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview |
| title_full_unstemmed | Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview |
| title_short | Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview |
| title_sort | recent developments in graphene based toxic gas sensors a theoretical overview |
| topic | pristine graphene defective graphene doped graphene density functional theory first principle studies toxic gas sensors |
| url | https://www.mdpi.com/1424-8220/21/6/1992 |
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