Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature
The catalytic properties of noble metal nanoparticles can enhance the adsorption capacity of sensors for target gases when compounded with MXene. In this study, a nanocomposite of gold nanoparticles (Au NPs) and MXene was prepared using a simple self-reduction process, and its microstructure, electr...
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ada236 |
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| author | Pu Shi Zhikun Wang Fan Shi |
| author_facet | Pu Shi Zhikun Wang Fan Shi |
| author_sort | Pu Shi |
| collection | DOAJ |
| description | The catalytic properties of noble metal nanoparticles can enhance the adsorption capacity of sensors for target gases when compounded with MXene. In this study, a nanocomposite of gold nanoparticles (Au NPs) and MXene was prepared using a simple self-reduction process, and its microstructure, electrochemical valence states, specific surface area, and other properties were characterized. Gas sensitivity tests conducted on the Au@MXene-20 sensor revealed excellent selectivity for NH _3 at room temperature. The response value to 100 ppm NH _3 at room temperature was 15.1%, approximately three times that of pure MXene, with response and recovery times of 118 s and 219 s, respectively. Moreover, the composite sensor exhibited a low detection limit, demonstrating a response of 3.496% to 5 ppm NH _3 at room temperature. Additionally, the Au@MXene-20 sensor possessed good repeatability, long-term stability, and moisture resistance. Therefore, the Au@MXene-20 sensor studied and prepared in this paper has been proven to be well-suited for NH _3 detection in harsh environments. |
| format | Article |
| id | doaj-art-8b1fe25d30f247f18861c25c4defe677 |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-8b1fe25d30f247f18861c25c4defe6772025-01-06T15:18:42ZengIOP PublishingMaterials Research Express2053-15912025-01-0112101590110.1088/2053-1591/ada236Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperaturePu Shi0https://orcid.org/0009-0002-0658-2024Zhikun Wang1Fan Shi2College of Mechanical and Electrical Engineering, Henan University of Technology , Zhengzhou 450052, People’s Republic of ChinaCollege of Mechanical and Electrical Engineering, Henan University of Technology , Zhengzhou 450052, People’s Republic of ChinaCollege of Information Science and Engineering, Henan University of Technology , Zhengzhou 450052, People’s Republic of ChinaThe catalytic properties of noble metal nanoparticles can enhance the adsorption capacity of sensors for target gases when compounded with MXene. In this study, a nanocomposite of gold nanoparticles (Au NPs) and MXene was prepared using a simple self-reduction process, and its microstructure, electrochemical valence states, specific surface area, and other properties were characterized. Gas sensitivity tests conducted on the Au@MXene-20 sensor revealed excellent selectivity for NH _3 at room temperature. The response value to 100 ppm NH _3 at room temperature was 15.1%, approximately three times that of pure MXene, with response and recovery times of 118 s and 219 s, respectively. Moreover, the composite sensor exhibited a low detection limit, demonstrating a response of 3.496% to 5 ppm NH _3 at room temperature. Additionally, the Au@MXene-20 sensor possessed good repeatability, long-term stability, and moisture resistance. Therefore, the Au@MXene-20 sensor studied and prepared in this paper has been proven to be well-suited for NH _3 detection in harsh environments.https://doi.org/10.1088/2053-1591/ada236Ti3C2Tx MXeneAu nanoparticlesnanocompositesgas sensorNH3 sensing |
| spellingShingle | Pu Shi Zhikun Wang Fan Shi Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature Materials Research Express Ti3C2Tx MXene Au nanoparticles nanocomposites gas sensor NH3 sensing |
| title | Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature |
| title_full | Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature |
| title_fullStr | Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature |
| title_full_unstemmed | Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature |
| title_short | Gold nanoparticles decorated multilayer mxene: towards highly selective and sensitive gas sensor at room temperature |
| title_sort | gold nanoparticles decorated multilayer mxene towards highly selective and sensitive gas sensor at room temperature |
| topic | Ti3C2Tx MXene Au nanoparticles nanocomposites gas sensor NH3 sensing |
| url | https://doi.org/10.1088/2053-1591/ada236 |
| work_keys_str_mv | AT pushi goldnanoparticlesdecoratedmultilayermxenetowardshighlyselectiveandsensitivegassensoratroomtemperature AT zhikunwang goldnanoparticlesdecoratedmultilayermxenetowardshighlyselectiveandsensitivegassensoratroomtemperature AT fanshi goldnanoparticlesdecoratedmultilayermxenetowardshighlyselectiveandsensitivegassensoratroomtemperature |