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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02447
|2 doi
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|a pubmed24n1211.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Paul, Dipanjan
|e verfasserin
|4 aut
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|a Selectivity of an Ag/BTO-Based Nanocomposite as a Gas Sensor Between NO2 and SO2 Gases
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 31.10.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The novel Ag/BTO/TiO2 nanocomposite was assessed for its gas-sensing capabilities toward hazardous gases NO2 and SO2. It exhibited p-type behavior with increasing resistance for SO2 with a response and recovery time of ∼5 and ∼2 s, respectively, switching to n-type behavior when exposed to NO2 with a response and recovery time of ∼20 and ∼250 s, respectively. Analyte gas concentrations from 0 to 220 ppm were taken for analysis. Selectivity analysis at room temperature revealed NO2's superior response of ∼20% above 180 ppm, compared to SO2's < 3% response at 180 ppm. NO2(VC) achieved its highest response (∼45%) at 30 ppm and remained constant above 80 ppm, while SO2(VC) peaked at ∼30% at 60 ppm but declined with increasing flow rates. Further, the increasing temperature led to an amplified response for NO2, whereas SO2 showed an increase in response after 180 °C. SO2(VC) exhibited a significant response of ∼70% from 140 °C onward. Additionally, NO2(VC) showed distinct peaks at 160, 250, and 290 °C with responses of 50, 65, and 80%, respectively. The calculated limit of detection values were 236 ppm for NO2, 644.07 ppm for SO2, 401.32 ppm for NO2(VC), and 496.86 ppm for SO2(VC)
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|a Journal Article
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|a Aamir, Lubna
|e verfasserin
|4 aut
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|a Yunus, Ghazala
|e verfasserin
|4 aut
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|a Kuddus, Mohammed
|e verfasserin
|4 aut
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|a Rathore, Deepshikha
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 43 vom: 31. Okt., Seite 15362-15368
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:39
|g year:2023
|g number:43
|g day:31
|g month:10
|g pages:15362-15368
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02447
|3 Volltext
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