Cyclic Nanostructures of Tungsten Oxide as Gas Sensor: A Theoretical Study

Table 3

Calculated energy of adsorption (in −eV) for NO₂ @ complexes.

Model	= 2	= 3	= 4	= 5	= 6
a	0.361	0.325	−0.961	0.194	0.250
b	0.192	0.172	0.158	0.124	0.109
c	0.193	0.175	0.161	0.127	0.116
d	2.003	0.631	0.489	0.362	0.292