title: Graphene/graphene-tube nanocomposites templated from cage-containing metal-organic frameworks for oxygen reduction in Li-O₂ batteries.
abstract: Nitrogen-doped graphene/graphene-tube nanocomposites are prepared by a hightemperature approach using a newly designed cage-containing metal-organic framework (MOF) to template nitrogen/carbon (dicyandiamide) and iron precursors. The resulting N-Fe-MOF catalysts universally exhibit high oxygen-reduction activity in acidic, alkaline, and non-aqueous electrolytes and superior cathode performance in Li-O2 batteries.
authors.affiliation: Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA; Department of Chemistry, Harbin Institute of Technology, Harbin, 150001, PR China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Ping
authors.initials: P
authors.lastname: Xu
authors.forename: Wei
authors.initials: W
authors.lastname: Gao
authors.forename: Shuguo
authors.initials: S
authors.lastname: Ma
authors.forename: Guoqi
authors.initials: G
authors.lastname: Zhang
authors.forename: Ruiguo
authors.initials: R
authors.lastname: Cao
authors.forename: Jaephil
authors.initials: J
authors.lastname: Cho
authors.forename: Hsing-Lin
authors.initials: HL
authors.lastname: Wang
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
keywords: graphene; graphene tubes; lithium-oxygen batteries; metal-organic frameworks; oxygen reduction reaction