title: Carbon quantum dot/NiFe layered double-hydroxide composite as a highly efficient electrocatalyst for water oxidation.
abstract: The design of highly efficient, durable, and earth-abundant catalysts for the oxygen evolution reaction is crucial to a variety of important energy conversion and storage processes. Here, we use carbon quantum dots (CQDs, ∼5 nm) to form hybrids with the ultrathin nickel-iron layered double-hydroxide (NiFe-LDH) nanoplates. The resulting CQD/NiFe-LDH complex exhibits high electrocatalytic activity (with an overpotential of ∼235 mV in 1 M KOH at a current density of 10 mA cm(-2)) and stability for oxygen evolution, which almost exceed the values of all previously reported Ni-Fe compounds and were comparable to those of the most active perovskite-based catalyst.
authors.affiliation: Institute of Functional Nano & Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China.
authors.forename: Di
authors.initials: D
authors.lastname: Tang
authors.forename: Juan
authors.initials: J
authors.lastname: Liu
authors.forename: Xuanyu
authors.initials: X
authors.lastname: Wu
authors.forename: Ruihua
authors.initials: R
authors.lastname: Liu
authors.forename: Xiao
authors.initials: X
authors.lastname: Han
authors.forename: Yuzhi
authors.initials: Y
authors.lastname: Han
authors.forename: Hui
authors.initials: H
authors.lastname: Huang
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Zhenhui
authors.initials: Z
authors.lastname: Kang