Table 1.

Gas-sensing materials: chemical compositions and symbols.

Chemical Composition	Symbol
YCo${}_{0.9}$Pd${}_{0.1}$O${}_3$	Mt1
YCo${}_{0.95}$Pd${}_{0.05}$O${}_3$	Mt2
Y${}_{0.95}$CoPd${}_{0.05}$O${}_3$	Mt3
Y${}_{1.1}$CoO${}_{3.15}$	Mt4
YCoO${}_3$	Mt5
YCo${}_{0.9}$O${}_{2.85}$	Mt6
YCoO${}_3$ + 1%Pd	Mt7
YCo${}_{0.9}$O${}_{2.85}$ + 1%Pd	Mt8