Please use this identifier to cite or link to this item:
|Title:||Phthalocyanine/silica hybrid films on QCM for enhanced nitric oxide sensing|
|Authors:||Palaniappan, Al. |
|Source:||Palaniappan, Al., Moochhala, S., Tay, F.E.H., Su, X., Phua, N.C.L. (2008-01-29). Phthalocyanine/silica hybrid films on QCM for enhanced nitric oxide sensing. Sensors and Actuators, B: Chemical 129 (1) : 184-187. ScholarBank@NUS Repository. https://doi.org/10.1016/j.snb.2007.07.132|
|Abstract:||We have attempted to detect nitric oxide (NO) in gaseous state by immobilizing cobalt phthalocyanine (CoPc) in a mesoporous silica matrix deposited on a quartz crystal microbalance (QCM). CoPc/mesoporous silica hybrids are prepared by using thermal calcination process. Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) are used to characterize the CoPc/silica hybrids. The sensor response towards NO is tested in a sealed gas chamber. To estimate the sensitivity enhancement introduced by the mesoporous silica film, NO response of non-modified QCM and CoPc-modified QCM are also recorded. Cross-sensitivity to potential interfering analyte such as carbon monoxide (CO) is then investigated. The experiment results show that sensitivities up to 25 ppb/Hz could be achieved by using the developed CoPc/silica hybrid on QCM. © 2007 Elsevier B.V. All rights reserved.|
|Source Title:||Sensors and Actuators, B: Chemical|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 7, 2017
WEB OF SCIENCETM
checked on Nov 23, 2017
checked on Dec 11, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.