[18a-D519-1~11] CS.5 Code-sharing Session of 6.5 & 7.6

[18a-D519-1] Polaron tunneling effects on H₂ generation on photo-catalytic Rutile TiO₂

〇Koichi Kato¹, Katsuyuki Fukutani¹ (1.Industrial Inst. Tokyo Univ.)

Keywords:hydrogen, rutile, polaron

H atoms dissociated in water on photo-catalytic rutile TiO2 have been found to meet together on a single O atom, and to desorb as a H2 molecule through tunnel transitions. The migrating H atoms accompany polarons. The polarons are located on Ti atoms, but finally fly to the H2 molecule and disappear. The polarons feel the final potential barrier, and are found to tunnel through the barrier during the H atom tunneling.