The authors acknowledge Prof. Michael Tsapatsis and Dr. Zhiping Lai for assisting in the acquisition of the X-ray diffraction patterns.
Synthesis and Characterization of a Composite Zeolite–Metglas Carbon Dioxide Sensor†
Article first published online: 4 JUL 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 15, Issue 7, pages 1165–1170, July, 2005
How to Cite
Giannakopoulos, I. G., Kouzoudis, D., Grimes, C. A. and Nikolakis, V. (2005), Synthesis and Characterization of a Composite Zeolite–Metglas Carbon Dioxide Sensor. Adv. Funct. Mater., 15: 1165–1170. doi: 10.1002/adfm.200400515
- Issue published online: 4 JUL 2005
- Article first published online: 4 JUL 2005
- Manuscript Accepted: 22 DEC 2004
- Manuscript Received: 5 NOV 2004
- Composite materials;
- Magnetic materials;
- Sensors, gas;
The synthesis of a faujasite–Metglas composite material that can be used in gas-sensing applications is presented. A continuous faujasite film was synthesized on a Metglas magnetoelastic strip using the secondary growth method. The ability of the new composite to remotely sense carbon dioxide in a nitrogen atmosphere at room temperature over a wide range of concentrations is demonstrated by monitoring the changes in the resonance frequency of the strip. The novel sensor combines the electromagnetic properties of the magnetoelastic material with the adsorption properties of the faujasite crystals. Experiments performed over a period of a few months showed that the composite sensor remained fully operational, thus indicating its long-term stability. Furthermore, the present work demonstrates that a zeolite–Metglas composite can be used as a sensor of an analyte in a mixture as long as it adsorbs selectively larger amounts of the particular analyte than other compounds present in the mixture.