title: Efficient oxygen evolution on hematite at neutral pH enabled by proton-coupled electron transfer.
abstract: The rate-determining step of the oxygen evolution reaction on hematite electrodes was switched from the sequential electron/proton transfer process to the concerted proton-coupled electron transfer (CPET) process by adding pyridine derivatives to the electrolyte. By inducing the CPET process, the overpotential for oxygen evolution at neutral pH decreased by approximately 250 mV.
authors.affiliation: Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan. ttakashima@yamanashi.ac.jp.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Takashima
authors.affiliation: Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan.
authors.forename: Koki
authors.initials: K
authors.lastname: Ishikawa
authors.affiliation: Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan. ttakashima@yamanashi.ac.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Irie