Research Article

Laser-Induced Fluorescence Decay of 2-Methyl-, 2-Methoxy-, and 2-Ethylnaphthlene on α-Alumina during Temperature Programmed Desorption

Table 1

Peak desorption temperatures, activation energies of desorption, and LIF excimer and trap decay rate constants for multilayer and bilayer (with 1-CH) for the two component decay.

2-MeON2-MN2-EN

𝑇 𝑃 (±3%) (K)275264268
𝐸 𝑎 (±3%) (kJ/mol) 72 69 70
Rate constant (±20%) ( × 1 0 6  s−1)
 Multilayer
  (i) Excimer
   Long component 2 6 5
   Short component352523
  (ii) Trap 100 44 23
 Bilayer
  (i) Excimer
   Long component 2 4 7
   Short component30 (36)25 (45)23 (42)
    (second excimer)
  (ii) Trap (second trap)67 (95)18 (33)43 (57)