A Review of Carbon Nanotubes-Based Gas Sensors

Table 2

Equilibrium tube-molecule distance (𝑑), adsorption energy (𝐸_𝑎) and charge transfer (𝑄) of the H₂ molecule on different adsorption sites in the (10,10) SWNT bundle [27].

Site	𝑑 (Å)	𝐸𝑎 (meV)	𝑄 (e)
Surface	3.01	94	0.014
Pore	2.83	111	0.012
Groove	3.33	114	0.026
Interstial	3.33	174	0.035