The last fundamental review on this general topic was entitled Dynamic Electrochemistry
and diverted significantly from the earlier series on chemical sensors by Janata in scope and …

In the recent past a great deal of research efforts were directed toward the development of
miniaturized gas-sensing devices, particularly for toxic gas detection and for pollution …

Use of hydrogen, oxygen, and carbon oxide semiconductor sensors made of metal oxides
allows controlling electronically the content of these gases in operation of many hydrogen …

Many types of sensors have been developed to detect chemical species in the gas phase.
These include optical based on color change or fluoresence, surface acoustic wave (SAW) …