Effects of Au Addition on the Performance of Thermal Electronic Noses Based on Porous Cu 2 O–SnO 2 Nanospheres.
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| Title: | Effects of Au Addition on the Performance of Thermal Electronic Noses Based on Porous Cu 2 O–SnO 2 Nanospheres. |
|---|---|
| Authors: | Tonezzer, Matteo1 (AUTHOR) matteo.tonezzer@unica.it, Ueda, Taro2 (AUTHOR) taroueda@nagasaki-u.ac.jp, Torai, Soichiro3 (AUTHOR) torai-souichirou@fujielectric.com, Fujita, Koki3 (AUTHOR) bb52123633@ms.nagasaki-u.ac.jp, Shimizu, Yasuhiro3 (AUTHOR) shimizu@nagasaki-u.ac.jp, Hyodo, Takeo2 (AUTHOR) matteo.tonezzer@unica.it |
| Source: | Nanomaterials (2079-4991). Dec2024, Vol. 14 Issue 24, p2052. 12p. |
| Subjects: | Electronic noses, Gas detectors, Copper oxide, Tin oxides, Copper |
| Abstract: | The electronic nose is an increasingly useful tool in many fields and applications. Our thermal electronic nose approach, based on nanostructured metal oxide chemiresistors in a thermal gradient, has the advantage of being tiny and therefore integrable in portable and wearable devices. Obviously, a wise choice of the nanomaterial is crucial for the device's performance and should therefore be carefully considered. Here we show how the addition of different amounts of Au (between 1 and 5 wt%) on Cu2O–SnO2 nanospheres affects the thermal electronic nose performance. Interestingly, the best performance is not achieved with the material offering the highest intrinsic selectivity. This confirms the importance of specific studies, since the performance of chemoresistive gas sensors does not linearly affect the performance of the electronic nose. By optimizing the amount of Au, the device achieved a perfect classification of the tested gases (acetone, ethanol, and toluene) and a good concentration estimation (with a mean absolute percentage error around 16%). These performances, combined with potentially smaller dimensions of less than 0.5 mm2, make this thermal electronic nose an ideal candidate for numerous applications, such as in the agri-food, environmental, and biomedical sectors. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 181954637 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of Au Addition on the Performance of Thermal Electronic Noses Based on Porous Cu 2 O–SnO 2 Nanospheres. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tonezzer%2C+Matteo%22">Tonezzer, Matteo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matteo.tonezzer@unica.it</i><br /><searchLink fieldCode="AR" term="%22Ueda%2C+Taro%22">Ueda, Taro</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> taroueda@nagasaki-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Torai%2C+Soichiro%22">Torai, Soichiro</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> torai-souichirou@fujielectric.com</i><br /><searchLink fieldCode="AR" term="%22Fujita%2C+Koki%22">Fujita, Koki</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> bb52123633@ms.nagasaki-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Shimizu%2C+Yasuhiro%22">Shimizu, Yasuhiro</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> shimizu@nagasaki-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Hyodo%2C+Takeo%22">Hyodo, Takeo</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> matteo.tonezzer@unica.it</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Dec2024, Vol. 14 Issue 24, p2052. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electronic+noses%22">Electronic noses</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+detectors%22">Gas detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+oxide%22">Copper oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Tin+oxides%22">Tin oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The electronic nose is an increasingly useful tool in many fields and applications. Our thermal electronic nose approach, based on nanostructured metal oxide chemiresistors in a thermal gradient, has the advantage of being tiny and therefore integrable in portable and wearable devices. Obviously, a wise choice of the nanomaterial is crucial for the device's performance and should therefore be carefully considered. Here we show how the addition of different amounts of Au (between 1 and 5 wt%) on Cu2O–SnO2 nanospheres affects the thermal electronic nose performance. Interestingly, the best performance is not achieved with the material offering the highest intrinsic selectivity. This confirms the importance of specific studies, since the performance of chemoresistive gas sensors does not linearly affect the performance of the electronic nose. By optimizing the amount of Au, the device achieved a perfect classification of the tested gases (acetone, ethanol, and toluene) and a good concentration estimation (with a mean absolute percentage error around 16%). These performances, combined with potentially smaller dimensions of less than 0.5 mm2, make this thermal electronic nose an ideal candidate for numerous applications, such as in the agri-food, environmental, and biomedical sectors. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano14242052 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 2052 Subjects: – SubjectFull: Electronic noses Type: general – SubjectFull: Gas detectors Type: general – SubjectFull: Copper oxide Type: general – SubjectFull: Tin oxides Type: general – SubjectFull: Copper Type: general Titles: – TitleFull: Effects of Au Addition on the Performance of Thermal Electronic Noses Based on Porous Cu 2 O–SnO 2 Nanospheres. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tonezzer, Matteo – PersonEntity: Name: NameFull: Ueda, Taro – PersonEntity: Name: NameFull: Torai, Soichiro – PersonEntity: Name: NameFull: Fujita, Koki – PersonEntity: Name: NameFull: Shimizu, Yasuhiro – PersonEntity: Name: NameFull: Hyodo, Takeo IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 12 Text: Dec2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 14 – Type: issue Value: 24 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
| ResultId | 1 |
