A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles

Cr-doped α-Fe(2)O(3) nanoparticles were synthesized by a low-cost and environmentally friendly hydrothermal route. Their gas sensing properties were investigated and the sensor showed high sensitivity and selectivity to H(2)S gas. Different Cr doping levels from 0 to 8.0 wt% were studied, and the se...

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Detalles Bibliográficos
Autores principales: Xue, Dongyang, Zhou, Rui, Lin, Xiaoping, Duan, Xiaochuan, Li, Qiuhong, Wang, Taihong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060450/
https://www.ncbi.nlm.nih.gov/pubmed/35520162
http://dx.doi.org/10.1039/c8ra07365a
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author Xue, Dongyang
Zhou, Rui
Lin, Xiaoping
Duan, Xiaochuan
Li, Qiuhong
Wang, Taihong
author_facet Xue, Dongyang
Zhou, Rui
Lin, Xiaoping
Duan, Xiaochuan
Li, Qiuhong
Wang, Taihong
author_sort Xue, Dongyang
collection PubMed
description Cr-doped α-Fe(2)O(3) nanoparticles were synthesized by a low-cost and environmentally friendly hydrothermal route. Their gas sensing properties were investigated and the sensor showed high sensitivity and selectivity to H(2)S gas. Different Cr doping levels from 0 to 8.0 wt% were studied, and the sensor of 4.0 wt% Cr-doped α-Fe(2)O(3) showed the largest response, with a response of 213 to 50 ppm H(2)S at 100 °C. The incorporation of Cr ions within α-Fe(2)O(3) nanocrystals increases the specific surface area, and promotes the oxidation of H(2)S and oxygen adsorption in the air. Thus, the doping of Cr into α-Fe(2)O(3) nanostructures would be a promising method for designing and fabricating high performance H(2)S gas sensors.
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spelling pubmed-90604502022-05-04 A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles Xue, Dongyang Zhou, Rui Lin, Xiaoping Duan, Xiaochuan Li, Qiuhong Wang, Taihong RSC Adv Chemistry Cr-doped α-Fe(2)O(3) nanoparticles were synthesized by a low-cost and environmentally friendly hydrothermal route. Their gas sensing properties were investigated and the sensor showed high sensitivity and selectivity to H(2)S gas. Different Cr doping levels from 0 to 8.0 wt% were studied, and the sensor of 4.0 wt% Cr-doped α-Fe(2)O(3) showed the largest response, with a response of 213 to 50 ppm H(2)S at 100 °C. The incorporation of Cr ions within α-Fe(2)O(3) nanocrystals increases the specific surface area, and promotes the oxidation of H(2)S and oxygen adsorption in the air. Thus, the doping of Cr into α-Fe(2)O(3) nanostructures would be a promising method for designing and fabricating high performance H(2)S gas sensors. The Royal Society of Chemistry 2019-01-31 /pmc/articles/PMC9060450/ /pubmed/35520162 http://dx.doi.org/10.1039/c8ra07365a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xue, Dongyang
Zhou, Rui
Lin, Xiaoping
Duan, Xiaochuan
Li, Qiuhong
Wang, Taihong
A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title_full A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title_fullStr A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title_full_unstemmed A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title_short A highly selective and sensitive H(2)S sensor at low temperatures based on Cr-doped α-Fe(2)O(3) nanoparticles
title_sort highly selective and sensitive h(2)s sensor at low temperatures based on cr-doped α-fe(2)o(3) nanoparticles
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060450/
https://www.ncbi.nlm.nih.gov/pubmed/35520162
http://dx.doi.org/10.1039/c8ra07365a
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