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Ambient temperature selective ammonia gas sensor based on SnO2-APTES modifications.

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Title: Ambient temperature selective ammonia gas sensor based on SnO2-APTES modifications.
Authors: Hijazi, Mohamad1, Rieu, Mathilde1 rieu@emse.fr, Stambouli, Valérie2, Tournier, Guy1, Viricelle, Jean-Paul1, Pijolat, Christophe1
Source: Sensors & Actuators B: Chemical. Mar2018, Vol. 256, p440-447. 8p.
Subjects: Stannic oxide, Silanization, Acyl chlorides, Fourier transform infrared spectroscopy, Ammonia gas
Abstract: In order to deal with the well-known lack of selectivity of SnO 2 based gas sensors, the functionalization of SnO 2 was performed. Liquid silanization by 3-aminopropyltriethoxysilane (APTES) was used as an intermediate step, followed by functionalization with molecules bearing acyl chloride with alkyl or ester end functional groups. Modified sensors with APTES, alkyl and ester end functional groups were successfully characterized by Attenuated Total Reflectance-Fourier Transform Infrared spectroscopy (ATR-FTIR). No response was observed for APTES and alkyl modified SnO 2 sensors to ammonia gas at room temperature while the SnO 2 sensor modified with ester end group was found to be sensitive and selective to ammonia gas at room temperature. This implies that the response is generated by ester functional groups. Working at low temperature is also one of the advantages of these sensors as well as the selectivity with respect to other gases like acetone and ethanol. [ABSTRACT FROM AUTHOR]
Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. 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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DbLabel: Engineering Source
An: 126210262
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  Data: Ambient temperature selective ammonia gas sensor based on SnO2-APTES modifications.
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  Data: <searchLink fieldCode="AR" term="%22Hijazi%2C+Mohamad%22">Hijazi, Mohamad</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rieu%2C+Mathilde%22">Rieu, Mathilde</searchLink><relatesTo>1</relatesTo><i> rieu@emse.fr</i><br /><searchLink fieldCode="AR" term="%22Stambouli%2C+Valérie%22">Stambouli, Valérie</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Tournier%2C+Guy%22">Tournier, Guy</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Viricelle%2C+Jean-Paul%22">Viricelle, Jean-Paul</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Pijolat%2C+Christophe%22">Pijolat, Christophe</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Sensors+%26+Actuators+B%3A+Chemical%22">Sensors & Actuators B: Chemical</searchLink>. Mar2018, Vol. 256, p440-447. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Stannic+oxide%22">Stannic oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Silanization%22">Silanization</searchLink><br /><searchLink fieldCode="DE" term="%22Acyl+chlorides%22">Acyl chlorides</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Ammonia+gas%22">Ammonia gas</searchLink>
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  Label: Abstract
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  Data: In order to deal with the well-known lack of selectivity of SnO 2 based gas sensors, the functionalization of SnO 2 was performed. Liquid silanization by 3-aminopropyltriethoxysilane (APTES) was used as an intermediate step, followed by functionalization with molecules bearing acyl chloride with alkyl or ester end functional groups. Modified sensors with APTES, alkyl and ester end functional groups were successfully characterized by Attenuated Total Reflectance-Fourier Transform Infrared spectroscopy (ATR-FTIR). No response was observed for APTES and alkyl modified SnO 2 sensors to ammonia gas at room temperature while the SnO 2 sensor modified with ester end group was found to be sensitive and selective to ammonia gas at room temperature. This implies that the response is generated by ester functional groups. Working at low temperature is also one of the advantages of these sensors as well as the selectivity with respect to other gases like acetone and ethanol. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/j.snb.2017.10.036
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 440
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      – SubjectFull: Stannic oxide
        Type: general
      – SubjectFull: Silanization
        Type: general
      – SubjectFull: Acyl chlorides
        Type: general
      – SubjectFull: Fourier transform infrared spectroscopy
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      – SubjectFull: Ammonia gas
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      – TitleFull: Ambient temperature selective ammonia gas sensor based on SnO2-APTES modifications.
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            NameFull: Rieu, Mathilde
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            NameFull: Stambouli, Valérie
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            NameFull: Tournier, Guy
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            NameFull: Viricelle, Jean-Paul
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              Text: Mar2018
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              Y: 2018
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