P2NG.23 - CuO-Loaded Porous SiO2 Fibers for H2S Detection
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-2 - Nanomaterials for Gas Sensing
- Author(s)
- S. Werner, C. Seitz, B. Smarsly - Justus-Liebig University Giessen, Institute of Physical Chemistry, Giessen (Germany)
- Pages
- 887 - 888
- DOI
- 10.5162/IMCS2018/P2NG.23
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
We present a new functional material as sensing layer for hydrogen sulfide (H2S) detection. The sensing mechanism is based on percolation effects in the cupric oxide (CuO) – copper(II)sulfide (CuS) system. By rational design of CuO/SiO2 nano-composite fibers structural stabilization during CuO-CuS phase change can be achieved. This leads to significant improvement in the cycle stability of this new sensor type. A detailed study of the synthesis and the influence of its various parameters on the sensors performance will be shown. This comprises, amongst other methods, nitrogen physisorption, electron microscopy and resistive type sensing measurements under controlled temperature in defined gas atmospheres.