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Novel carbon dioxide microsensor based on tin oxide nanomaterial doped with copper oxide
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lukco, Dorothy Xu, Jennifer C. Liu, Chung-Chiun Hunter, Gary W. Ward, Benjamin J. |
| Copyright Year | 2008 |
| Description | Carbon dioxide (CO2) is one of the major indicators of fire and therefore its measurement is very important for low-false-alarm fire detection and emissions monitoring. However, only a limited number of CO2 sensing materials exist due to the high chemical stability of CO2. In this work, a novel CO2 microsensor based on nanocrystalline tin oxide (SnO2) doped with copper oxide (CuO) has been successfully demonstrated. The CuO-SnO2 based CO2 microsensors are fabricated by means of microelectromechanical systems (MEMS) technology and sol-gel nanomaterial-synthesis processes. At a doping level of CuO: SnO2 = 1:8 (molar ratio), the resistance of the sensor has a linear response to CO2 concentrations for the range of 1 to 4 percent CO2 in air at 450 C. This approach has demonstrated the use of SnO2, typically used for the detection of reducing gases, in the detection of an oxidizing gas. |
| File Size | 449425 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090007953 |
| Archival Resource Key | ark:/13960/t4nk8bb5q |
| Language | English |
| Publisher Date | 2008-12-01 |
| Access Restriction | Open |
| Subject Keyword | Tin Oxides Microelectromechanical Systems Fabrication Carbon Dioxide Concentration Carbon Dioxide False Alarms Microinstrumentation Oxidation Sensors Detection Copper Oxides Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
