Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties
The oxidation process was studied for the synthesized low-layer Ti<sub>2</sub>CT<sub>x</sub> MXene deposited on a special Al<sub>2</sub>O<sub>3</sub>/Pt sensor substrate using in situ Raman spectroscopy. It is noted that on the ceramic parts of the sub...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/11/1/13 |
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| author | Artem S. Mokrushin Ilya A. Nagornov Philipp Yu. Gorobtsov Aleksey A. Averin Tatiana L. Simonenko Nikolay P. Simonenko Elizaveta P. Simonenko Nikolay T. Kuznetsov |
| author_facet | Artem S. Mokrushin Ilya A. Nagornov Philipp Yu. Gorobtsov Aleksey A. Averin Tatiana L. Simonenko Nikolay P. Simonenko Elizaveta P. Simonenko Nikolay T. Kuznetsov |
| author_sort | Artem S. Mokrushin |
| collection | DOAJ |
| description | The oxidation process was studied for the synthesized low-layer Ti<sub>2</sub>CT<sub>x</sub> MXene deposited on a special Al<sub>2</sub>O<sub>3</sub>/Pt sensor substrate using in situ Raman spectroscopy. It is noted that on the ceramic parts of the substrate (Al<sub>2</sub>O<sub>3</sub>), the beginning of oxidation (appearance of anatase mod phase) is observed already at 316 °C, in comparison with platinum, for which the appearance of anatase is noted only at 372 °C. At the temperature 447 °C, the initial MXene film is completely oxidized to TiO<sub>2</sub>. Using scanning electron microscopy and atomic force microscopy, the microstructure and dispersity of the obtained MXene film were studied. It was found that the obtained films exhibit chemoresistive responses to the detection of a wide group of gases, H<sub>2</sub>, CO, NH<sub>3</sub>, C<sub>6</sub>H<sub>6</sub>, C<sub>3</sub>H<sub>6</sub>O, CH<sub>4</sub>, C<sub>2</sub>H<sub>5</sub>OH and O<sub>2</sub>, at room temperature and RH = 50%. The highest sensitivity is observed for NH<sub>3</sub>. The partial oxidation of the Ti<sub>2</sub>CT<sub>x</sub> MXene was shown to favorably affect the gas-sensitive properties. |
| first_indexed | 2024-03-09T13:11:28Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-09T13:11:28Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-4889bcbe77ce4acda155c5cf3b590fa32023-11-30T21:41:18ZengMDPI AGChemosensors2227-90402022-12-011111310.3390/chemosensors11010013Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive PropertiesArtem S. Mokrushin0Ilya A. Nagornov1Philipp Yu. Gorobtsov2Aleksey A. Averin3Tatiana L. Simonenko4Nikolay P. Simonenko5Elizaveta P. Simonenko6Nikolay T. Kuznetsov7Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky pr., bldg. 4, 199071 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky pr., 119991 Moscow, RussiaThe oxidation process was studied for the synthesized low-layer Ti<sub>2</sub>CT<sub>x</sub> MXene deposited on a special Al<sub>2</sub>O<sub>3</sub>/Pt sensor substrate using in situ Raman spectroscopy. It is noted that on the ceramic parts of the substrate (Al<sub>2</sub>O<sub>3</sub>), the beginning of oxidation (appearance of anatase mod phase) is observed already at 316 °C, in comparison with platinum, for which the appearance of anatase is noted only at 372 °C. At the temperature 447 °C, the initial MXene film is completely oxidized to TiO<sub>2</sub>. Using scanning electron microscopy and atomic force microscopy, the microstructure and dispersity of the obtained MXene film were studied. It was found that the obtained films exhibit chemoresistive responses to the detection of a wide group of gases, H<sub>2</sub>, CO, NH<sub>3</sub>, C<sub>6</sub>H<sub>6</sub>, C<sub>3</sub>H<sub>6</sub>O, CH<sub>4</sub>, C<sub>2</sub>H<sub>5</sub>OH and O<sub>2</sub>, at room temperature and RH = 50%. The highest sensitivity is observed for NH<sub>3</sub>. The partial oxidation of the Ti<sub>2</sub>CT<sub>x</sub> MXene was shown to favorably affect the gas-sensitive properties.https://www.mdpi.com/2227-9040/11/1/13chemoresistive gas sensorsMXenesT<sub>2</sub>CTitanium dioxide (TiO<sub>2</sub>)Raman2D-nanomaterials |
| spellingShingle | Artem S. Mokrushin Ilya A. Nagornov Philipp Yu. Gorobtsov Aleksey A. Averin Tatiana L. Simonenko Nikolay P. Simonenko Elizaveta P. Simonenko Nikolay T. Kuznetsov Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties Chemosensors chemoresistive gas sensors MXenes T<sub>2</sub>C Titanium dioxide (TiO<sub>2</sub>) Raman 2D-nanomaterials |
| title | Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties |
| title_full | Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties |
| title_fullStr | Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties |
| title_full_unstemmed | Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties |
| title_short | Effect of Ti<sub>2</sub>CT<sub>x</sub> MXene Oxidation on Its Gas-Sensitive Properties |
| title_sort | effect of ti sub 2 sub ct sub x sub mxene oxidation on its gas sensitive properties |
| topic | chemoresistive gas sensors MXenes T<sub>2</sub>C Titanium dioxide (TiO<sub>2</sub>) Raman 2D-nanomaterials |
| url | https://www.mdpi.com/2227-9040/11/1/13 |
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