Preparation of a high-performance H2S gas sensor based on CuO/Co3O4composite derived from bimetallic MOF
© 2024 IOP Publishing Ltd..
The bimetallic metal-organic frameworks (MOFs), Cu/Co-MOF, was synthesized through a solvothermal method and calcined to obtain CuO/Co3O4composites. By adjusting the molar ratio between Cu and Co ions, a composite material of CuO/Co3O4(Cu:Co = 1:1) was developed and showed excellent sensing capabilities, and the response reached as high as 196.3 for 10 ppm H2S detection. Furthermore, the optimal operating temperature as low as 40 °C was found. In comparison with the sensors prepared by pristine CuO and pristine Co3O4, the sensor based on CuO/Co3O4composite exhibited a significant response. Additionally, the sensor can detect H2S gas down to 300 ppb. The gas sensing mechanism is discussed in depth from the perspective of p-p heterojunction formation between the p-type CuO and p-type Co3O4. The as-prepared CuO/Co3O4composite-based sensor is expected to find practical application in the low-power monitoring of H2S.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:35 |
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| Enthalten in: |
Nanotechnology - 35(2024), 19 vom: 19. Feb. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Zhanhong [VerfasserIn] |
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| Links: |
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| Themen: |
Bimetallic MOF |
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| Anmerkungen: |
Date Revised 19.02.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1088/1361-6528/ad2481 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM367857057 |
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| 520 | |a © 2024 IOP Publishing Ltd. | ||
| 520 | |a The bimetallic metal-organic frameworks (MOFs), Cu/Co-MOF, was synthesized through a solvothermal method and calcined to obtain CuO/Co3O4composites. By adjusting the molar ratio between Cu and Co ions, a composite material of CuO/Co3O4(Cu:Co = 1:1) was developed and showed excellent sensing capabilities, and the response reached as high as 196.3 for 10 ppm H2S detection. Furthermore, the optimal operating temperature as low as 40 °C was found. In comparison with the sensors prepared by pristine CuO and pristine Co3O4, the sensor based on CuO/Co3O4composite exhibited a significant response. Additionally, the sensor can detect H2S gas down to 300 ppb. The gas sensing mechanism is discussed in depth from the perspective of p-p heterojunction formation between the p-type CuO and p-type Co3O4. The as-prepared CuO/Co3O4composite-based sensor is expected to find practical application in the low-power monitoring of H2S | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a CuO/Co3O4 | |
| 650 | 4 | |a H2S | |
| 650 | 4 | |a bimetallic MOF | |
| 650 | 4 | |a gas sensor | |
| 650 | 4 | |a p–p junction | |
| 700 | 1 | |a Wang, Xu |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Xin, Jiangang |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Lili |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Yutong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Zhigang |e verfasserin |4 aut | |
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