Gas Sensing Properties and Mechanism of Nano-SnO₂-Based Sensor for Hydrogen and Carbon Monoxide

Table 3

The Mulliken charge and population of H₂ and CO.

		Before adsorption		After adsorption
		s	p	s	p
H2	H	0.62	0.03	0.60	0.01
	H	0.62	0.03	0.60	0.01
CO	C	1.68	1.90	1.51	2.16
	O	1.84	4.58	1.83	4.44