title: Mesoporous amorphous binary Ru-Ti oxides as bifunctional catalysts for non-aqueous Li-O2batteries.
abstract: Mesoporous amorphous binary Ru-Ti oxides were prepared as bifunctional catalysts for non-aqueous Li-O2batteries, and their electrochemical performance was investigated for the first time. A Li-O2battery with mesoporous amorphous binary Ru-Ti oxides exhibited a remarkably high capacity of 27100 mAh g-1as well as a reduced overpotential. A GITT analysis suggested that the introduction of amorphous TiO2to amorphous RuO2was responsible for the enhanced kinetics toward both the oxygen reduction reaction and oxygen evolution reaction. Excellent cyclic stability up to 230 cycles was achieved, confirming the applicability of the new bifunctional catalyst in non-aqueous Li-O2batteries.
authors.affiliation: Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeongro, Yuseong, Daejeon 34114, Korea. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Jisu
authors.initials: J
authors.lastname: Kim
authors.forename: HeeGoo
authors.initials: H
authors.lastname: Jo
authors.forename: Mihye
authors.initials: M
authors.lastname: Wu
authors.forename: Dae-Ho
authors.initials: DH
authors.lastname: Yoon
authors.forename: Yongku
authors.initials: Y
authors.lastname: Kang
authors.forename: Ha-Kyun
authors.initials: HK
authors.lastname: Jung