An investigation of gas response of α-Fe2O3(Sn)-based gas sensor
In contrast to sensors using Fe2(SO4)3.xH2O and SnCl4.5H2O as raw material, the effects of using Fe(NO3)3.9H2O and SnCl4.5H2O as raw material, to further improve CO sensitivity and selectivity against CH4, are investigated. The results show that the CO sensitivity of alpha-Fe2O3-based sensors agains...
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| Veröffentlicht in: | Journal of materials science letters 1999, Vol.18 (12), p.975-977 |
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| container_issue | 12 |
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| container_title | Journal of materials science letters |
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| creator | HAN, J. S DAVEY, D. E MULCAHY, D. E YU, A. B |
| description | In contrast to sensors using Fe2(SO4)3.xH2O and SnCl4.5H2O as raw material, the effects of using Fe(NO3)3.9H2O and SnCl4.5H2O as raw material, to further improve CO sensitivity and selectivity against CH4, are investigated. The results show that the CO sensitivity of alpha-Fe2O3-based sensors against CH4 can be further lowered using Fe(NO3)3.9H2O of low S content as raw material with Sn doping through OH cluster formation on the surface. There is thus no need to invoke the formation of SO4(2-) ions in this improved performance. 11 refs. |
| doi_str_mv | 10.1023/A:1006671425850 |
| format | Article |
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| subjects | Analytical chemistry Chemistry Exact sciences and technology General equipment and techniques General, instrumentation Instruments, apparatus, components and techniques common to several branches of physics and astronomy Physics Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing |
| title | An investigation of gas response of α-Fe2O3(Sn)-based gas sensor |
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