High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate

Aarthy Sivapunniyam; Niti Wiromrat; Myo Tay Zar Myint; Joydeep Dutta

doi:10.1016/j.snb.2011.03.055

High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate

Aarthy Sivapunniyam, Niti Wiromrat, Myo Tay Zar Myint, Joydeep Dutta^*

^*Corresponding author for this work

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

82 Citations (Scopus)

Abstract

Toxic and combustible gas detection plays a major role in environmental air quality monitoring. Real-time monitoring of hazardous gases and signal of accidental leakages is of great importance owing to the concern for safety requirements in industries and household applications. A simple and economical method for the fabrication of highly sensitive zinc oxide (ZnO) nanorods based gas sensors for detecting low concentrations of Liquefied Petroleum Gas (LPG) was studied in this work. Platinum (Pt) nanoparticles were deposited on the sensing medium which acts as catalysts to improve the sensor performance. The change in electrical resistance of the metal oxide semiconductor for varying concentrations of LPG was measured. Maximum response of 59% was achieved for 9000 ppm LPG at 250 °C. Further to improve the sensing performance of the sensor towards LPG, surface modification of ZnO nanorods using zinc stannate (Zn₂SnO₄) microcubes was performed. High response of 63% was observed for 3000 ppm LPG at 250 °C. Significant improvement in response of the sensor with Zn₂SnO₄ microcubes on ZnO nanorods was observed when compared to sensor with ZnO nanorods.

Original language	English
Pages (from-to)	232-239
Number of pages	8
Journal	Sensors and Actuators, B: Chemical
Volume	157
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2011.03.055
Publication status	Published - Sept 20 2011
Externally published	Yes

Keywords

Gas sensor
Liquefied petroleum gas (LPG)
Nanorods
Zinc oxide
Zinc stannate

ASJC Scopus subject areas

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 = "High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate",

abstract = "Toxic and combustible gas detection plays a major role in environmental air quality monitoring. Real-time monitoring of hazardous gases and signal of accidental leakages is of great importance owing to the concern for safety requirements in industries and household applications. A simple and economical method for the fabrication of highly sensitive zinc oxide (ZnO) nanorods based gas sensors for detecting low concentrations of Liquefied Petroleum Gas (LPG) was studied in this work. Platinum (Pt) nanoparticles were deposited on the sensing medium which acts as catalysts to improve the sensor performance. The change in electrical resistance of the metal oxide semiconductor for varying concentrations of LPG was measured. Maximum response of 59% was achieved for 9000 ppm LPG at 250 °C. Further to improve the sensing performance of the sensor towards LPG, surface modification of ZnO nanorods using zinc stannate (Zn2SnO4) microcubes was performed. High response of 63% was observed for 3000 ppm LPG at 250 °C. Significant improvement in response of the sensor with Zn2SnO4 microcubes on ZnO nanorods was observed when compared to sensor with ZnO nanorods.",

keywords = "Gas sensor, Liquefied petroleum gas (LPG), Nanorods, Zinc oxide, Zinc stannate",

author = "Aarthy Sivapunniyam and Niti Wiromrat and Myint, {Myo Tay Zar} and Joydeep Dutta",

note = "Funding Information: The authors would like to acknowledge the partial financial support from National Nanotechnology center (NANOTEC), Thailand , Center of Excellence in Nanotechnology at the Asian Institute of Technology , Thailand, Ministry of Science and Technology , Thailand and Royal Thai Government . ",

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AU - Sivapunniyam, Aarthy

AU - Wiromrat, Niti

AU - Myint, Myo Tay Zar

AU - Dutta, Joydeep

N1 - Funding Information: The authors would like to acknowledge the partial financial support from National Nanotechnology center (NANOTEC), Thailand , Center of Excellence in Nanotechnology at the Asian Institute of Technology , Thailand, Ministry of Science and Technology , Thailand and Royal Thai Government .

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N2 - Toxic and combustible gas detection plays a major role in environmental air quality monitoring. Real-time monitoring of hazardous gases and signal of accidental leakages is of great importance owing to the concern for safety requirements in industries and household applications. A simple and economical method for the fabrication of highly sensitive zinc oxide (ZnO) nanorods based gas sensors for detecting low concentrations of Liquefied Petroleum Gas (LPG) was studied in this work. Platinum (Pt) nanoparticles were deposited on the sensing medium which acts as catalysts to improve the sensor performance. The change in electrical resistance of the metal oxide semiconductor for varying concentrations of LPG was measured. Maximum response of 59% was achieved for 9000 ppm LPG at 250 °C. Further to improve the sensing performance of the sensor towards LPG, surface modification of ZnO nanorods using zinc stannate (Zn2SnO4) microcubes was performed. High response of 63% was observed for 3000 ppm LPG at 250 °C. Significant improvement in response of the sensor with Zn2SnO4 microcubes on ZnO nanorods was observed when compared to sensor with ZnO nanorods.

AB - Toxic and combustible gas detection plays a major role in environmental air quality monitoring. Real-time monitoring of hazardous gases and signal of accidental leakages is of great importance owing to the concern for safety requirements in industries and household applications. A simple and economical method for the fabrication of highly sensitive zinc oxide (ZnO) nanorods based gas sensors for detecting low concentrations of Liquefied Petroleum Gas (LPG) was studied in this work. Platinum (Pt) nanoparticles were deposited on the sensing medium which acts as catalysts to improve the sensor performance. The change in electrical resistance of the metal oxide semiconductor for varying concentrations of LPG was measured. Maximum response of 59% was achieved for 9000 ppm LPG at 250 °C. Further to improve the sensing performance of the sensor towards LPG, surface modification of ZnO nanorods using zinc stannate (Zn2SnO4) microcubes was performed. High response of 63% was observed for 3000 ppm LPG at 250 °C. Significant improvement in response of the sensor with Zn2SnO4 microcubes on ZnO nanorods was observed when compared to sensor with ZnO nanorods.

KW - Gas sensor

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KW - Zinc stannate

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High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate

Abstract

Keywords

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