Highly sensitive gas sensor based on Al-doped ZnO nanoparticles for detection of dimethyl methylphosphonate as a chemical warfare agent simulant

Ran Yoo; Sungmee Cho; Min Jung Song; Wooyoung Lee

doi:10.1016/j.snb.2015.06.076

Highly sensitive gas sensor based on Al-doped ZnO nanoparticles for detection of dimethyl methylphosphonate as a chemical warfare agent simulant

Ran Yoo, Sungmee Cho, Min Jung Song, Wooyoung Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

Abstract

Abstract In this paper, we report a dimethyl methylphosphonate (DMMP) gas sensor using synthesized Al-doped ZnO nanoparticles (NPs) via a hydrothermal method. The average particle size of the Al-doped ZnO NPs is ∼25 nm. The single crystalline phase was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The variation in the response of the Al-doped ZnO NP sensors within operating temperatures showed the highest response and recovery at 2 and 96 s, respectively, at 10 ppm in DMMP at 350°C compared with undoped ZnO NP sensors. Our results showed remarkable sensitivity and selectivity of the Al-doped ZnO NPs sensor toward DMMP. Such increased O₂ vacancies and surface reactions with small nanocrystals in the Al-doped ZnO NP sensors offer outstanding sensing performance for DMMP detection.

Original language	English
Article number	18653
Pages (from-to)	217-223
Number of pages	7
Journal	Sensors and Actuators, B: Chemical
Volume	221
DOIs	https://doi.org/10.1016/j.snb.2015.06.076
Publication status	Published - 2015 Jul 11

Bibliographical note

Funding Information:
This work was supported by the Agency for Defense Development (ADD) of the Republic of Korea and Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF).

Publisher Copyright:
© 2015 Published by Elsevier B.V.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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title = "Highly sensitive gas sensor based on Al-doped ZnO nanoparticles for detection of dimethyl methylphosphonate as a chemical warfare agent simulant",

abstract = "Abstract In this paper, we report a dimethyl methylphosphonate (DMMP) gas sensor using synthesized Al-doped ZnO nanoparticles (NPs) via a hydrothermal method. The average particle size of the Al-doped ZnO NPs is ∼25 nm. The single crystalline phase was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The variation in the response of the Al-doped ZnO NP sensors within operating temperatures showed the highest response and recovery at 2 and 96 s, respectively, at 10 ppm in DMMP at 350°C compared with undoped ZnO NP sensors. Our results showed remarkable sensitivity and selectivity of the Al-doped ZnO NPs sensor toward DMMP. Such increased O2 vacancies and surface reactions with small nanocrystals in the Al-doped ZnO NP sensors offer outstanding sensing performance for DMMP detection.",

author = "Ran Yoo and Sungmee Cho and Song, {Min Jung} and Wooyoung Lee",

note = "Funding Information: This work was supported by the Agency for Defense Development (ADD) of the Republic of Korea and Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF). Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

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T1 - Highly sensitive gas sensor based on Al-doped ZnO nanoparticles for detection of dimethyl methylphosphonate as a chemical warfare agent simulant

AU - Yoo, Ran

AU - Cho, Sungmee

AU - Song, Min Jung

AU - Lee, Wooyoung

N1 - Funding Information: This work was supported by the Agency for Defense Development (ADD) of the Republic of Korea and Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF). Publisher Copyright: © 2015 Published by Elsevier B.V.

PY - 2015/7/11

Y1 - 2015/7/11

N2 - Abstract In this paper, we report a dimethyl methylphosphonate (DMMP) gas sensor using synthesized Al-doped ZnO nanoparticles (NPs) via a hydrothermal method. The average particle size of the Al-doped ZnO NPs is ∼25 nm. The single crystalline phase was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The variation in the response of the Al-doped ZnO NP sensors within operating temperatures showed the highest response and recovery at 2 and 96 s, respectively, at 10 ppm in DMMP at 350°C compared with undoped ZnO NP sensors. Our results showed remarkable sensitivity and selectivity of the Al-doped ZnO NPs sensor toward DMMP. Such increased O2 vacancies and surface reactions with small nanocrystals in the Al-doped ZnO NP sensors offer outstanding sensing performance for DMMP detection.

AB - Abstract In this paper, we report a dimethyl methylphosphonate (DMMP) gas sensor using synthesized Al-doped ZnO nanoparticles (NPs) via a hydrothermal method. The average particle size of the Al-doped ZnO NPs is ∼25 nm. The single crystalline phase was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The variation in the response of the Al-doped ZnO NP sensors within operating temperatures showed the highest response and recovery at 2 and 96 s, respectively, at 10 ppm in DMMP at 350°C compared with undoped ZnO NP sensors. Our results showed remarkable sensitivity and selectivity of the Al-doped ZnO NPs sensor toward DMMP. Such increased O2 vacancies and surface reactions with small nanocrystals in the Al-doped ZnO NP sensors offer outstanding sensing performance for DMMP detection.

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JO - Sensors and Actuators B: Chemical

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Highly sensitive gas sensor based on Al-doped ZnO nanoparticles for detection of dimethyl methylphosphonate as a chemical warfare agent simulant

Abstract

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