P5.8 - Metal-Organic Frameworks for Sensing Applications in the Gas Phase
- Event
- SENSOR+TEST Conferences 2009
2009-05-26 - 2009-05-28
Congress Center Nürnberg - Band
- Proceedings SENSOR 2009, Volume II
- Chapter
- P5 - Gas-Sensors
- Author(s)
- S. Achmann, G. Hagen, R. Moos - University of Bayreuth, Bayreuth, Germany, I. Malkowsky, C. Kiener - BASF SE, Ludwigshafen, Germany
- Pages
- 417 - 420
- DOI
- 10.5162/sensor09/v2/p5.8
- ISBN
- 978-3-9810993-5-5
- Price
- free
Abstract
Several materials of the class of metal-organic frameworks (MOF) were tested for their applicability in the field of gas sensors. In particular, impedimetric gas sensor devices were studied. Various sensor configurations were investigated in a frequency range of 1 Hz -10 MHz, and additional time-continuous measurements at 1 Hz were performed. In the temperature range from 120 °C to 240 °C, the sensors were exposed to O2, CO2, C3H8, NO, H2, ethanol and methanol concentrations and tested under various humidity conditions of the carrier gas N2. The materials did not show any signal to O2, CO2, C3H8, NO, and H2. However, promising pronounced and reversible responses in the electric properties to changes in humidity were obtained for some selected MOF materials. Of particular interest is the linear response curve observed at 120 °C.