Flame-Made La2O3-Based Nanocomposite CO2 Sensors as Perspective Part of GHG Monitoring System

Continuous monitoring of greenhouse gases with high spatio-temporal resolution has lately become an urgent task because of tightening environmental restrictions. It may be addressed with an economically efficient solution, based on semiconductor metal oxide gas sensors. In the present work, CO<su...

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Autores principales:	Matvey Andreev, Vadim Platonov, Darya Filatova, Elena Galitskaya, Sergey Polomoshnov, Sergey Generalov, Anastasiya Nikolaeva, Vladimir Amelichev, Oleg Zhdaneev, Valeriy Krivetskiy, Marina Rumyantseva
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	greenhouse gases CO<sub>2</sub> gas sensor semiconductor lanthanum oxide nanocomposite Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/3e8c5679f3e5458fa722c24a757f612f
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spelling	oai:doaj.org-article:3e8c5679f3e5458fa722c24a757f612f2021-11-11T19:15:06ZFlame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System10.3390/s212172971424-8220https://doaj.org/article/3e8c5679f3e5458fa722c24a757f612f2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7297https://doaj.org/toc/1424-8220Continuous monitoring of greenhouse gases with high spatio-temporal resolution has lately become an urgent task because of tightening environmental restrictions. It may be addressed with an economically efficient solution, based on semiconductor metal oxide gas sensors. In the present work, CO<sub>2</sub> detection in the relevant concentration range and ambient conditions was successfully effectuated by fine-particulate La<sub>2</sub>O<sub>3</sub>-based materials. Flame spray pyrolysis technique was used for the synthesis of sensitive materials, which were studied with X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTs) and low temperature nitrogen adsorption coupled with Brunauer–Emmett–Teller (BET) effective surface area calculation methodology. The obtained materials represent a composite of lanthanum oxide, hydroxide and carbonate phases. The positive correlation has been established between the carbonate content in the as prepared materials and their sensor response towards CO<sub>2</sub>. Small dimensional planar MEMS micro-hotplates with low energy consumption were used for gas sensor fabrication through inkjet printing. The sensors showed highly selective CO<sub>2</sub> detection in the range of 200–6667 ppm in humid air compared with pollutant gases (H<sub>2</sub> 50 ppm, CH<sub>4</sub> 100 ppm, NO<sub>2</sub> 1 ppm, NO 1 ppm, NH<sub>3</sub> 20 ppm, H<sub>2</sub>S 1 ppm, SO<sub>2</sub> 1 ppm), typical for the atmospheric air of urbanized and industrial area.Matvey AndreevVadim PlatonovDarya FilatovaElena GalitskayaSergey PolomoshnovSergey GeneralovAnastasiya NikolaevaVladimir AmelichevOleg ZhdaneevValeriy KrivetskiyMarina RumyantsevaMDPI AGarticlegreenhouse gasesCO<sub>2</sub>gas sensorsemiconductorlanthanum oxidenanocompositeChemical technologyTP1-1185ENSensors, Vol 21, Iss 7297, p 7297 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	greenhouse gases CO<sub>2</sub> gas sensor semiconductor lanthanum oxide nanocomposite Chemical technology TP1-1185
spellingShingle	greenhouse gases CO<sub>2</sub> gas sensor semiconductor lanthanum oxide nanocomposite Chemical technology TP1-1185 Matvey Andreev Vadim Platonov Darya Filatova Elena Galitskaya Sergey Polomoshnov Sergey Generalov Anastasiya Nikolaeva Vladimir Amelichev Oleg Zhdaneev Valeriy Krivetskiy Marina Rumyantseva Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
description	Continuous monitoring of greenhouse gases with high spatio-temporal resolution has lately become an urgent task because of tightening environmental restrictions. It may be addressed with an economically efficient solution, based on semiconductor metal oxide gas sensors. In the present work, CO<sub>2</sub> detection in the relevant concentration range and ambient conditions was successfully effectuated by fine-particulate La<sub>2</sub>O<sub>3</sub>-based materials. Flame spray pyrolysis technique was used for the synthesis of sensitive materials, which were studied with X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTs) and low temperature nitrogen adsorption coupled with Brunauer–Emmett–Teller (BET) effective surface area calculation methodology. The obtained materials represent a composite of lanthanum oxide, hydroxide and carbonate phases. The positive correlation has been established between the carbonate content in the as prepared materials and their sensor response towards CO<sub>2</sub>. Small dimensional planar MEMS micro-hotplates with low energy consumption were used for gas sensor fabrication through inkjet printing. The sensors showed highly selective CO<sub>2</sub> detection in the range of 200–6667 ppm in humid air compared with pollutant gases (H<sub>2</sub> 50 ppm, CH<sub>4</sub> 100 ppm, NO<sub>2</sub> 1 ppm, NO 1 ppm, NH<sub>3</sub> 20 ppm, H<sub>2</sub>S 1 ppm, SO<sub>2</sub> 1 ppm), typical for the atmospheric air of urbanized and industrial area.
format	article
author	Matvey Andreev Vadim Platonov Darya Filatova Elena Galitskaya Sergey Polomoshnov Sergey Generalov Anastasiya Nikolaeva Vladimir Amelichev Oleg Zhdaneev Valeriy Krivetskiy Marina Rumyantseva
author_facet	Matvey Andreev Vadim Platonov Darya Filatova Elena Galitskaya Sergey Polomoshnov Sergey Generalov Anastasiya Nikolaeva Vladimir Amelichev Oleg Zhdaneev Valeriy Krivetskiy Marina Rumyantseva
author_sort	Matvey Andreev
title	Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
title_short	Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
title_full	Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
title_fullStr	Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
title_full_unstemmed	Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System
title_sort	flame-made la<sub>2</sub>o<sub>3</sub>-based nanocomposite co<sub>2</sub> sensors as perspective part of ghg monitoring system
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3e8c5679f3e5458fa722c24a757f612f
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Flame-Made La<sub>2</sub>O<sub>3</sub>-Based Nanocomposite CO<sub>2</sub> Sensors as Perspective Part of GHG Monitoring System

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