title: Facile synthesis of graphene-like copper oxide nanofilms with enhanced electrochemical and photocatalytic properties in energy and environmental applications.
abstract: Novel graphene-like CuO nanofilms are grown on a copper foam substrate by in situ anodization for multifunctional applications as supercapacitor electrodes and photocatalysts for the degradation of dye pollutants. The as-prepared CuO consists of interconnected, highly crystalline, conductive CuO nanosheets with hierarchical open mesopores and a large surface area. The CuO nanofilms supported on a copper foam are employed as freestanding, binder-free electrodes for supercapacitors, which exhibit wonderful electrochemical performance with a large specific capacitance (919 F g(-1) at 1 A g(-1)), an excellent cycling stability (7% capacitance loss after 5000 cycles), and a good rate capability (748 F g(-1) at 30 A g(-1)). The porous CuO nanofilms also demonstrate excellent photocatalytic activities for degradation of methylene blue, with a degradation rate 99% much higher than 54% of the commercial CuO powders after 60 min. This excellent energy storage and photocatalytic performance of the graphene-like CuO nanofilms can open a new avenue for large-scale applications in energy and environmental fields.
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.|§School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.affiliation: ∥College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, People's Republic of China.
authors.forename: Xianming
authors.initials: X
authors.lastname: Liu
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.
authors.forename: Kangwen
authors.initials: K
authors.lastname: Qiu
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.
authors.forename: Jinbing
authors.initials: J
authors.lastname: Cheng
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.
authors.forename: Weixiao
authors.initials: W
authors.lastname: Wang
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.
authors.forename: Hailong
authors.initials: H
authors.lastname: Yan
authors.affiliation: §School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China.
authors.forename: Chengchun
authors.initials: C
authors.lastname: Tang
authors.affiliation: ⊥Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.
authors.forename: Jang-Kyo
authors.initials: JK
authors.lastname: Kim
authors.affiliation: †School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, People's Republic of China.|‡Key Laboratory of Advanced Micro/Nano Functional Materials, Xinyang Normal University, Xinyang 464000, People's Republic of China.
authors.forename: Yongsong
authors.initials: Y
authors.lastname: Luo
keywords: anodization; copper oxide; graphene-like nanofilms; photocatalyst; supercapacitor electrode