Investigation of gas response of α-Fe2O3(Sn)-based gas sensor

J. S. Han; D. E. Davey; D. E. Mulcahy; A. B. Yu

doi:10.1023/A:1006671425850

Investigation of gas response of α-Fe₂O₃(Sn)-based gas sensor

J. S. Han
, D. E. Davey
, D. E. Mulcahy
, A. B. Yu

School of Energy and Power Engineering

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

5 Scopus citations

Abstract

The effect of surface remaining clusters for α-Fe₂O₃-based sensors using Fe(NO₃)₃·9H₂O and SnCl₄·5H₂O as raw material was examined to further improve the CO sensitivity and selectivity against CH₄. CO and CH₄ responses as a function of operating temperature are shown. With an increase in the pH value of the preparation solution from 7 to 10.5, the CO sensitivity was significantly improved and optimum operating temperature shifted from around 300 °C for sensors prepared at pH 7 to about 250 °C for those prepared at 10.5. However, the CH₄ response for sensors prepared at different pHs slightly increased with increasing pH. The CO sensitivity was improved probably through the formation of chemically bonded OH clusters during its preparation.

Original language	English
Pages (from-to)	975-977
Number of pages	3
Journal	Journal of Materials Science Letters
Volume	18
Issue number	12
DOIs	https://doi.org/10.1023/A:1006671425850
State	Published - 1999

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title = "Investigation of gas response of α-Fe2O3(Sn)-based gas sensor",

abstract = "The effect of surface remaining clusters for α-Fe2O3-based sensors using Fe(NO3)3·9H2O and SnCl4·5H2O as raw material was examined to further improve the CO sensitivity and selectivity against CH4. CO and CH4 responses as a function of operating temperature are shown. With an increase in the pH value of the preparation solution from 7 to 10.5, the CO sensitivity was significantly improved and optimum operating temperature shifted from around 300 °C for sensors prepared at pH 7 to about 250 °C for those prepared at 10.5. However, the CH4 response for sensors prepared at different pHs slightly increased with increasing pH. The CO sensitivity was improved probably through the formation of chemically bonded OH clusters during its preparation.",

author = "Han, \{J. S.\} and Davey, \{D. E.\} and Mulcahy, \{D. E.\} and Yu, \{A. B.\}",

year = "1999",

doi = "10.1023/A:1006671425850",

language = "英语",

volume = "18",

pages = "975--977",

journal = "Journal of Materials Science Letters",

issn = "0261-8028",

publisher = "Chapman \& Hall",

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T1 - Investigation of gas response of α-Fe2O3(Sn)-based gas sensor

AU - Han, J. S.

AU - Davey, D. E.

AU - Mulcahy, D. E.

AU - Yu, A. B.

PY - 1999

Y1 - 1999

N2 - The effect of surface remaining clusters for α-Fe2O3-based sensors using Fe(NO3)3·9H2O and SnCl4·5H2O as raw material was examined to further improve the CO sensitivity and selectivity against CH4. CO and CH4 responses as a function of operating temperature are shown. With an increase in the pH value of the preparation solution from 7 to 10.5, the CO sensitivity was significantly improved and optimum operating temperature shifted from around 300 °C for sensors prepared at pH 7 to about 250 °C for those prepared at 10.5. However, the CH4 response for sensors prepared at different pHs slightly increased with increasing pH. The CO sensitivity was improved probably through the formation of chemically bonded OH clusters during its preparation.

AB - The effect of surface remaining clusters for α-Fe2O3-based sensors using Fe(NO3)3·9H2O and SnCl4·5H2O as raw material was examined to further improve the CO sensitivity and selectivity against CH4. CO and CH4 responses as a function of operating temperature are shown. With an increase in the pH value of the preparation solution from 7 to 10.5, the CO sensitivity was significantly improved and optimum operating temperature shifted from around 300 °C for sensors prepared at pH 7 to about 250 °C for those prepared at 10.5. However, the CH4 response for sensors prepared at different pHs slightly increased with increasing pH. The CO sensitivity was improved probably through the formation of chemically bonded OH clusters during its preparation.

UR - https://www.scopus.com/pages/publications/0032654583

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DO - 10.1023/A:1006671425850

M3 - 文章

AN - SCOPUS:0032654583

SN - 0261-8028

VL - 18

SP - 975

EP - 977

JO - Journal of Materials Science Letters

JF - Journal of Materials Science Letters

IS - 12

ER -

Investigation of gas response of α-Fe₂O₃(Sn)-based gas sensor

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