QCM gas phase detection with ceramic materials-VOCs and oil vapors
Latif, U; Rohrer, A; Lieberzeit, PA; Dickert, FL
HERO ID
738542
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 738542 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | QCM gas phase detection with ceramic materials-VOCs and oil vapors |
| Authors | Latif, U; Rohrer, A; Lieberzeit, PA; Dickert, FL |
| Journal | Analytical and Bioanalytical Chemistry |
| Volume | 400 |
| Issue | 8 |
| Page Numbers | 2457-2462 |
| Abstract | Titanate sol-gel layers imprinted with carbonic acids were used as sensitive layers on quartz crystal microbalance. These functionalized ceramics enable us detection of volatile organic compounds such as ethanol, n-propanol, n-butanol, n-hexane, n-heptane, n-/iso-octane, and n-decane. Variation of the precursors (i.e., tetrabutoxy titanium, tetrapropoxy titanium, tetraethoxy titanium) allows us to tune the sensitivity of the material by a factor of 7. Sensitivity as a function of precursors leads to selective inclusion of n-butanol vapors down to 1 ppm. The selectivity of materials is optimized to differentiate between isomers, e.g., n- and iso-octane. The results can be rationalized by correlating the sensor effects of hydrocarbons with the Wiener index. A mass-sensitive sensor based on titanate layer was also developed for monitoring emanation of degraded engine oil. Heating the sensor by a meander avoids vapor condensation. Thus, a continuously working oil quality sensor was designed. |
| Doi | 10.1007/s00216-011-4684-1 |
| Pmid | 21301823 |
| Wosid | WOS:000290912700020 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Scopus URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79958087247&doi=10.1007%2fs00216-011-4684-1&partnerID=40&md5=ad612eb2cc09253d37161b85bd594032 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Sensors; Titanate sol-gel layers; Quartz crystal microbalance (QCM); Volatile organic compounds (VOCs) |
| Is Qa | No |