Abstract
Temperature programmed desorption (TPD) and reaction (TPR) were performed along with infrared (IR) spectrometry to determine adsorption and reaction behaviors of NOx and CO on a La2CuO4 /YSZ/Pt potentiometric sensor. TPR and TPD experiments for NO exposure on La2CuO4 revealed NO does not react to form thermodynamically favored N2, or NO2 in the presence of O2. Further, NO molecules that bond to the surface of the powder are only weakly held and desorb at low temperatures. IR analysis of the adsorption revealed extensive formation of ionic nitrate, indicating the potential voltage generated from NO exposure comes from adsorption products. NO2 TPD and TPR showed a complex desorption pattern and extensive decomposition of NO2 at high temperatures. It was concluded that the mechanism of electric potential generation from NO2 was the additive effect of several paths.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
