Workflow for High Throughput Screening of Gas Sensing Materials

Sensors

Tobias J. Koplin¹  Maike Siemons¹  César Océn-Valéntin¹  Daniel Sanders¹ 

[1] id="af1-sensors-06-00298">Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germa

关键词: High throughput experimentation;    gas sensor;    metal oxide;    doping;    impedance spectroscopy;    nitrogen oxides;   

DOI  :  10.3390/s6040298

来源: mdpi

【 摘 要 】

The workflow of a high throughput screening setup for the rapid identification of new and improved sensor materials is presented. The polyol method was applied to prepare nanoparticular metal oxides as base materials, which were functionalised by surface doping. Using multi-electrode substrates and high throughput impedance spectroscopy (HT-IS) a wide range of materials could be screened in a short time. Applying HT-IS in search of new selective gas sensing materials a NO₂-tolerant NO sensing material with reduced sensitivities towards other test gases was identified based on iridium doped zinc oxide. Analogous behaviour was observed for iridium doped indium oxide.

【 授权许可】

Unknown   
© 2006 by MDPI (http://www.mdpi.org).