| AVS 55th International Symposium & Exhibition | |
| Surface Science | Tuesday Sessions |
| Session SS-TuP |
| Session: | Surface Science Poster Session |
| Presenter: | W.H. Doh, Kyungpook National University, South Korea |
| Authors: | W.H. Doh, Kyungpook National University, South Korea C.M. Kim, Kyungpook National University, South Korea |
| Correspondent: | Click to Email |
We studied the reaction of Cl2 and C2H4 co-adsorbed on ZnO single crystal surfaces. It is observed that C2H4 is molecularly adsorbed on ZnO at 110 K and desorbed intact from the surface when the surface temperature is increased. Cl2 is molecularly adsorbed on ZnO at 110 K and decomposed to atomic chlorine when the surface is heated to higher than 200 K. When the ZnO surface is co-adsorbed with Cl2 and C2H4, desorption of 1,2-dichloroethane is observed. We studied the mechanism of low-temperature addition of Cl to C2H4 on ZnO. We propose that “hot” atoms are produced in the process of Cl2 dissociation and these “hot” chlorine atoms attack co-adsorbed C2H4 to produce 1,2-dichloroethane before thermodynamic equilibrium is reached.