Kato Masaru, Kimijima Ken'ichi, Shibata Mari, Notsu Hideo, Ogino Kazuya, Inokuma Kiyoshi, Ohta Narumi, Uehara Hiromitsu, Uemura Yohei, Oyaizu Nobuhisa, Ohba Tadashi, Takakusagi Satoru, Asakura Kiyotaka, Yagi Ichizo
Faculty of Environmental Earth Science, Hokkaido University, N10W5, Kita-ku, Sapporo 060-0810, Japan.
Phys Chem Chem Phys. 2015 Apr 14;17(14):8638-41. doi: 10.1039/c4cp05595k. Epub 2015 Mar 11.
A dinuclear copper(II) complex of 3,5-diamino-1,2,4-triazole is one of the highly active copper-based catalysts for the oxygen reduction reaction (ORR) in basic solutions. Our in situ X-ray absorption near edge structure measurements revealed that deprotonation of the triazole ligand might cause coordination geometrical changes, resulting in the enhancement of the ORR activity.