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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202303523
|2 doi
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|a pubmed25n1192.xml
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|a (NLM)37269248
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|a DE-627
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|a eng
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|a Xia, Yi
|e verfasserin
|4 aut
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|a Enhanced Free-Radical Generation on MoS2 /Pt by Light and Water Vapor Co-Activation for Selective CO Detection with High Sensitivity
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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 27.07.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Semiconductor-based gas sensors hold great promise for effective carbon monoxide (CO) detection. However, boosting sensor response and selectivity remains a key priority in moist conditions. In this study, a composite material, Pt quantum dots decorated MoS2 nanosheets (MoS2 /Pt), is developed as a highly sensitive material for CO detection when facilitated with visible light. The MoS2 /Pt sensor shows a significantly improved response (87.4%) with impressive response/recovery kinetics (20 s/17 s), long-term stability (60 days), and good selectivity to CO at high humidity (≈60%). It is confirmed both experimentally and theoretically that the MoS2 /Pt surface lowers the activation energy to convert CO to CO2 via the free radicals induced by the synergy of photochemical effects and water vapor. As a result, the MoS2 /Pt surface promotes both CO response and selectivity, providing fundamental clues to improve room-temperature semiconductor-based sensors for gas detection under extreme conditions
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|a Journal Article
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|a MoS2/Pt
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|a free radicals
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|a light
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|a selective CO sensing
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|a water vapor
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|a Guo, Shenghui
|e verfasserin
|4 aut
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|a Yang, Li
|e verfasserin
|4 aut
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|a He, Sufang
|e verfasserin
|4 aut
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|a Zhou, Liexing
|e verfasserin
|4 aut
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|a Wang, Mingjun
|e verfasserin
|4 aut
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|a Gao, Jiyun
|e verfasserin
|4 aut
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|a Hou, Ming
|e verfasserin
|4 aut
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|a Wang, Jing
|e verfasserin
|4 aut
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|a Komarneni, Sridhar
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 30 vom: 03. Juli, Seite e2303523
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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|g volume:35
|g year:2023
|g number:30
|g day:03
|g month:07
|g pages:e2303523
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|u http://dx.doi.org/10.1002/adma.202303523
|3 Volltext
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