Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors

The sensing material plays a very important role in determining the sensing properties of a gas sensor. In order to synthesise the sensing material, the precursors have a large effect on the properties of the sensing material. In this study, three types of γ-Fe2O3 nanoparticles were prepared with di...

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Tác giả chính: Nguyen Thanh Vinh, Tran Van Dang, Bui Thi Hang, Anh-Tuan Le, Nguyen Tri Tuan, Le Khanh Vinh, Nguyen Van Quy
Định dạng: Bài trích
Ngôn ngữ:English
Nhà xuất bản: Sensors and Actuators A: Physical 2021
Chủ đề:
QCM
Truy cập trực tuyến:https://www.sciencedirect.com/science/article/abs/pii/S0924424721004465?via%3Dihub
https://dlib.phenikaa-uni.edu.vn/handle/PNK/3311
https://doi.org/10.1016/j.sna.2021.112981
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spelling oai:localhost:PNK-33112022-08-17T05:54:46Z Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors Nguyen Thanh Vinh Tran Van Dang Bui Thi Hang Anh-Tuan Le Nguyen Tri Tuan Le Khanh Vinh Nguyen Van Quy Gas sensor QCM The sensing material plays a very important role in determining the sensing properties of a gas sensor. In order to synthesise the sensing material, the precursors have a large effect on the properties of the sensing material. In this study, three types of γ-Fe2O3 nanoparticles were prepared with different ferric ion concentrations of [Fe3+] and [Fe2+] as precursors, by a typical facile chemical precipitation process and a following annealing treatment. A mass-type gas sensor was fabricated by using a quartz crystal microbalance (QCM) coated with various γ-Fe2O3 nanoparticles. The morphology, crystallisation, and gas adsorption characteristics of the γ-Fe2O3 nanoparticles were investigated. The effect of ferric ion concentrations of [Fe3+] and [Fe2+] on sensing properties is discussed in detail. Interestingly, the sensor based on γ-Fe2O3 nanoparticles synthesised with ferric ion [Fe3+] showed excellent sensing properties for the detection of SO2 gas, with high sensitivity and repeatability at room temperature. The experimental results clearly demonstrate that the γ-Fe2O3 nanoparticle is an excellent sensing material which may be suitable for practical sensing applications. 2021-10-27T02:05:06Z 2021-10-27T02:05:06Z 2021 Bài trích https://www.sciencedirect.com/science/article/abs/pii/S0924424721004465?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/3311 https://doi.org/10.1016/j.sna.2021.112981 en Sensors and Actuators A: Physical
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Gas sensor
QCM
spellingShingle Gas sensor
QCM
Nguyen Thanh Vinh
Tran Van Dang
Bui Thi Hang
Anh-Tuan Le
Nguyen Tri Tuan
Le Khanh Vinh
Nguyen Van Quy
Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
description The sensing material plays a very important role in determining the sensing properties of a gas sensor. In order to synthesise the sensing material, the precursors have a large effect on the properties of the sensing material. In this study, three types of γ-Fe2O3 nanoparticles were prepared with different ferric ion concentrations of [Fe3+] and [Fe2+] as precursors, by a typical facile chemical precipitation process and a following annealing treatment. A mass-type gas sensor was fabricated by using a quartz crystal microbalance (QCM) coated with various γ-Fe2O3 nanoparticles. The morphology, crystallisation, and gas adsorption characteristics of the γ-Fe2O3 nanoparticles were investigated. The effect of ferric ion concentrations of [Fe3+] and [Fe2+] on sensing properties is discussed in detail. Interestingly, the sensor based on γ-Fe2O3 nanoparticles synthesised with ferric ion [Fe3+] showed excellent sensing properties for the detection of SO2 gas, with high sensitivity and repeatability at room temperature. The experimental results clearly demonstrate that the γ-Fe2O3 nanoparticle is an excellent sensing material which may be suitable for practical sensing applications.
format Bài trích
author Nguyen Thanh Vinh
Tran Van Dang
Bui Thi Hang
Anh-Tuan Le
Nguyen Tri Tuan
Le Khanh Vinh
Nguyen Van Quy
author_facet Nguyen Thanh Vinh
Tran Van Dang
Bui Thi Hang
Anh-Tuan Le
Nguyen Tri Tuan
Le Khanh Vinh
Nguyen Van Quy
author_sort Nguyen Thanh Vinh
title Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
title_short Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
title_full Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
title_fullStr Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
title_full_unstemmed Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
title_sort effect of ferric ion [fe3+] and [fe2+] on so2 adsorption ability of γ-fe2o3 nanoparticles for mass-type gas sensors
publisher Sensors and Actuators A: Physical
publishDate 2021
url https://www.sciencedirect.com/science/article/abs/pii/S0924424721004465?via%3Dihub
https://dlib.phenikaa-uni.edu.vn/handle/PNK/3311
https://doi.org/10.1016/j.sna.2021.112981
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