Preparation and ethanol sensing properties of flower-like cupric oxide hierarchical nanorods

Nguyen Hoang Hung; Nguyen Dang Thanh; Nguyen Huu Lam; Nguyen Dac Dien; Nguyen Duc Chien; Dang Duc Vuong

doi:10.1016/j.mssp.2014.03.052

Preparation and ethanol sensing properties of flower-like cupric oxide hierarchical nanorods

Nguyen Hoang Hung, Nguyen Dang Thanh, Nguyen Huu Lam, Nguyen Dac Dien, Nguyen Duc Chien, Dang Duc Vuong

New Industry Creation Hatchery Center (NICHe)

Hanoi University of Science and Technology

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

22 Citations (Scopus)

Abstract

Flower-like cupric oxide (CuO) hierarchical nanorods (petal size: 60-100 nm in diameter and 500-700 nm in length) were synthesized by wet chemical-assisted hydrothermal processing. The samples were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The influence of hydrothermal temperature on the formation of CuO nanoflowers was investigated. Sensors based on CuO nanoflowers were fabricated by coating them on SiO₂/Si substrate attached with Pt interdigitated electrodes. Sensing characteristics of the samples were measured and evaluated as a function of operating temperature and ethanol vapor concentration. The results revealed that the p-type semiconductor CuO nanoflowers based sensors exhibit high sensitivity and selectivity toward ethanol vapor with the optimum working temperature at about 230 °C.

Original language	English
Pages (from-to)	18-24
Number of pages	7
Journal	Materials Science in Semiconductor Processing
Volume	26
Issue number	1
DOIs	https://doi.org/10.1016/j.mssp.2014.03.052
Publication status	Published - 2014 Oct

Keywords

Flower-like CuO
Gas sensor
Hydrothermal
PEG

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10.1016/j.mssp.2014.03.052

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title = "Preparation and ethanol sensing properties of flower-like cupric oxide hierarchical nanorods",

abstract = "Flower-like cupric oxide (CuO) hierarchical nanorods (petal size: 60-100 nm in diameter and 500-700 nm in length) were synthesized by wet chemical-assisted hydrothermal processing. The samples were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The influence of hydrothermal temperature on the formation of CuO nanoflowers was investigated. Sensors based on CuO nanoflowers were fabricated by coating them on SiO2/Si substrate attached with Pt interdigitated electrodes. Sensing characteristics of the samples were measured and evaluated as a function of operating temperature and ethanol vapor concentration. The results revealed that the p-type semiconductor CuO nanoflowers based sensors exhibit high sensitivity and selectivity toward ethanol vapor with the optimum working temperature at about 230 °C.",

keywords = "Flower-like CuO, Gas sensor, Hydrothermal, PEG",

author = "Hung, {Nguyen Hoang} and Thanh, {Nguyen Dang} and Lam, {Nguyen Huu} and Dien, {Nguyen Dac} and Chien, {Nguyen Duc} and Vuong, {Dang Duc}",

note = "Funding Information: This work was supported by the National Foundation for Science and Technology Development (NAFOSTED) of Vietnam (Code 103.99-2012.31 ).",

year = "2014",

month = oct,

doi = "10.1016/j.mssp.2014.03.052",

language = "English",

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T1 - Preparation and ethanol sensing properties of flower-like cupric oxide hierarchical nanorods

AU - Hung, Nguyen Hoang

AU - Thanh, Nguyen Dang

AU - Lam, Nguyen Huu

AU - Dien, Nguyen Dac

AU - Chien, Nguyen Duc

AU - Vuong, Dang Duc

N1 - Funding Information: This work was supported by the National Foundation for Science and Technology Development (NAFOSTED) of Vietnam (Code 103.99-2012.31 ).

PY - 2014/10

Y1 - 2014/10

N2 - Flower-like cupric oxide (CuO) hierarchical nanorods (petal size: 60-100 nm in diameter and 500-700 nm in length) were synthesized by wet chemical-assisted hydrothermal processing. The samples were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The influence of hydrothermal temperature on the formation of CuO nanoflowers was investigated. Sensors based on CuO nanoflowers were fabricated by coating them on SiO2/Si substrate attached with Pt interdigitated electrodes. Sensing characteristics of the samples were measured and evaluated as a function of operating temperature and ethanol vapor concentration. The results revealed that the p-type semiconductor CuO nanoflowers based sensors exhibit high sensitivity and selectivity toward ethanol vapor with the optimum working temperature at about 230 °C.

AB - Flower-like cupric oxide (CuO) hierarchical nanorods (petal size: 60-100 nm in diameter and 500-700 nm in length) were synthesized by wet chemical-assisted hydrothermal processing. The samples were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The influence of hydrothermal temperature on the formation of CuO nanoflowers was investigated. Sensors based on CuO nanoflowers were fabricated by coating them on SiO2/Si substrate attached with Pt interdigitated electrodes. Sensing characteristics of the samples were measured and evaluated as a function of operating temperature and ethanol vapor concentration. The results revealed that the p-type semiconductor CuO nanoflowers based sensors exhibit high sensitivity and selectivity toward ethanol vapor with the optimum working temperature at about 230 °C.

KW - Flower-like CuO

KW - Gas sensor

KW - Hydrothermal

KW - PEG

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JO - Materials Science in Semiconductor Processing

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Preparation and ethanol sensing properties of flower-like cupric oxide hierarchical nanorods

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Keywords

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