Schedule 6 10:45 AM - 11:00 AM [A1講演 1G04] PH dependence and reaction mechanism of N-doped carbon catalyst on ORR 〇Kenji Hayashida1, Yusuke Hikita1, Kotaro Takeyasu1, Santosh K Singh1, Takahiro Kondo1, Junji Nakamura1 (1. The university of Tsukuba)