2013 Fiscal Year Final Research Report
Development of a new CO sensor for reducing atmosphere
| Project/Area Number |
23550156
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Ehime University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | センサー / 燃料電池 |
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| Research Abstract |
CO sensing property was investigated for CuO/SnO2-In2O3 in a reducing atmosphere. CuO-loaded SnO2-In2O3 exhibited high sensitivity to CO in the range of 200-1000 ppm of CO concentration. Such a high sensitivity may come from high dispersion of CuO on SnO2. It was considered that the redox of SnO2 surface, which is accelerated by reduced CuO, was closely related to CO sensitivity of CuO-loaded SnO2. The CO sensing properties of Pt/SnO2, Au/SnO2, Ag/SnO2, Pd/SnO2, Ru/SnO2, and Rh/SnO2 sensors were investigated in wet H2 atmosphere at room temperature. Good response and recovery behaviors of Rh(1wt%)/SnO2 sensor were observed. It is concluded that Rh/SnO2 sensor has a potential candidate as CO monitoring in H2 at room temperature.
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