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240923s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.4c02052
|2 doi
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|a pubmed25n1258.xml
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|a eng
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|a Zhang, Zhenkai
|e verfasserin
|4 aut
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|a Bimetallic MOFs-Derived Metal Oxides Co3O4/SnO2 Microspheres for Ultrahigh Response n-Butanol Gas Sensors
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 01.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The construction of p-n heterojunctions is expected to be one of the effective means to improve gas sensitivity. In this research, p-n heterojunctions are successfully constructed by metal oxides derived from metal-organic frameworks (MOFs). MOFs-derived bimetallic Co3O4/SnO2 microspheres are prepared by precipitation. Gas-sensing performance shows that the Co3O4/SnO2 sensor exhibits an extremely high response (Ra/Rg = 641) to 20 ppm of n-butanol at 200 °C, which is 19 times that of pristine SnO2. It can detect n-butanol gas at low concentrations, has good selectivity to alcohol gas, and reduces the interference of benzene gas. The improved gas sensitivity can be attributed to the formation of a stable heterojunction between Co3O4 and SnO2, resulting in a greater resistance change of Co3O4/SnO2. Co3O4/SnO2 inherits the characteristic of high specific surface area of MOFs, which provides abundant sites for the reaction of the target gas and oxygen molecules. Finally, the gas-sensing mechanism of the Co3O4/SnO2-based sensor is discussed in detail
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|a Journal Article
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1 |
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|a Chen, Qiuying
|e verfasserin
|4 aut
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1 |
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|a Guo, Yujun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dastan, Davoud
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Xiao-Chun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Ying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tan, Xiao-Ming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Feifei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yin, Xi-Tao
|e verfasserin
|4 aut
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| 700 |
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|a Ren, Shan
|e verfasserin
|4 aut
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| 700 |
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|a Ma, Xiaoguang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 40(2024), 39 vom: 01. Okt., Seite 20505-20514
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:40
|g year:2024
|g number:39
|g day:01
|g month:10
|g pages:20505-20514
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|u http://dx.doi.org/10.1021/acs.langmuir.4c02052
|3 Volltext
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