Gas sensors based on carbon nanoflake/tin oxide composites for ammonia detection

Soo Keun Lee; Daeic Chang; Sang Wook Kim

doi:10.1016/j.jhazmat.2013.12.049

Gas sensors based on carbon nanoflake/tin oxide composites for ammonia detection

Soo Keun Lee, Daeic Chang, Sang Wook Kim

Division of Energy Techonology

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

88 Scopus citations

Abstract

Carbon nanoflake (CNFL) was obtained from graphite pencil by using the electrochemical method and the CNFL/SnO₂ composite material assessed its potential as an ammonia gas sensor. A thin film resistive gas sensor using the composite material was manufactured by the drop casting method, and the sensor was evaluated to test in various ammonia concentrations and operating temperatures. Physical and chemical characteristics of the composite material were assessed using SEM, TEM, SAED, EDS and Raman spectroscopy. The composite material having 10% of SnO₂ showed 3 times higher sensor response and better repeatability than the gas sensor using pristine SnO₂ nano-particle at the optimal temperature of 350°C.

Original language	English
Pages (from-to)	110-114
Number of pages	5
Journal	Journal of Hazardous Materials
Volume	268
DOIs	https://doi.org/10.1016/j.jhazmat.2013.12.049
State	Published - 15 Mar 2014

Bibliographical note

Funding Information:
This work was supported by a grant from the Basic Science Research Program (Grant No. 13-NB-03 ) through the Korean government (MEST) .

Keywords

Ammonia
Carbon nano material
Composite material
Gas sensor
Tin oxide

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10.1016/j.jhazmat.2013.12.049

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title = "Gas sensors based on carbon nanoflake/tin oxide composites for ammonia detection",

abstract = "Carbon nanoflake (CNFL) was obtained from graphite pencil by using the electrochemical method and the CNFL/SnO2 composite material assessed its potential as an ammonia gas sensor. A thin film resistive gas sensor using the composite material was manufactured by the drop casting method, and the sensor was evaluated to test in various ammonia concentrations and operating temperatures. Physical and chemical characteristics of the composite material were assessed using SEM, TEM, SAED, EDS and Raman spectroscopy. The composite material having 10\% of SnO2 showed 3 times higher sensor response and better repeatability than the gas sensor using pristine SnO2 nano-particle at the optimal temperature of 350°C.",

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AU - Lee, Soo Keun

AU - Chang, Daeic

AU - Kim, Sang Wook

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PY - 2014/3/15

Y1 - 2014/3/15

N2 - Carbon nanoflake (CNFL) was obtained from graphite pencil by using the electrochemical method and the CNFL/SnO2 composite material assessed its potential as an ammonia gas sensor. A thin film resistive gas sensor using the composite material was manufactured by the drop casting method, and the sensor was evaluated to test in various ammonia concentrations and operating temperatures. Physical and chemical characteristics of the composite material were assessed using SEM, TEM, SAED, EDS and Raman spectroscopy. The composite material having 10% of SnO2 showed 3 times higher sensor response and better repeatability than the gas sensor using pristine SnO2 nano-particle at the optimal temperature of 350°C.

AB - Carbon nanoflake (CNFL) was obtained from graphite pencil by using the electrochemical method and the CNFL/SnO2 composite material assessed its potential as an ammonia gas sensor. A thin film resistive gas sensor using the composite material was manufactured by the drop casting method, and the sensor was evaluated to test in various ammonia concentrations and operating temperatures. Physical and chemical characteristics of the composite material were assessed using SEM, TEM, SAED, EDS and Raman spectroscopy. The composite material having 10% of SnO2 showed 3 times higher sensor response and better repeatability than the gas sensor using pristine SnO2 nano-particle at the optimal temperature of 350°C.

KW - Ammonia

KW - Carbon nano material

KW - Composite material

KW - Gas sensor

KW - Tin oxide

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Gas sensors based on carbon nanoflake/tin oxide composites for ammonia detection

Abstract

Bibliographical note

Keywords

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