In situ fabrication of a graphene-coated threedimensional nickel oxide anode for high-capacity lithium-ion batteries

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This article discusses the development of an in situ fabrication of a graphene-coated, three-dimensional (3D) NiO-Ni structure by simple chemical vapor deposition (CVD).

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8 p.

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Kang, Chiwon; Cha, Eunho; Lee, Sang Hyub & Choi, Wonbong January 15, 2018.

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This article is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Engineering to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this article can be viewed below.

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This article discusses the development of an in situ fabrication of a graphene-coated, three-dimensional (3D) NiO-Ni structure by simple chemical vapor deposition (CVD).

Physical Description

8 p.

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Abstract: The high theoretical specific capacity of nickel oxide (NiO) makes it attractive as a high-efficiency electrode material for electrochemical energy storage. However, its application is limited due to its inferior electrochemical performance and complicated electrode fabrication process. Here, we developed an in situ fabrication of a graphene-coated, three-dimensional (3D) NiO–Ni structure by simple chemical vapor deposition (CVD). We synthesized NiO layers on Ni foam through a thermal oxidation process; subsequently, we grew graphene layers directly on the surface of NiO after a hydrogen-assisted reduction process. The uniform graphene coating renders high electrical conductivity, structural flexibility and high elastic modulus at atomic thickness. The graphene-coated 3D NiO–Ni structure delivered a high areal density of ∼23 mg cm−2. It also exhibits a high areal capacity of 1.2 mA h cm−2 at 0.1 mA cm−2 for its Li-ion battery performance. The high capacity is attributed to the high surface area of the 3D structure and the unique properties of the graphene layers on the NiO anode. Since the entire process is carried out in one CVD system, the fabrication of such a graphene-coated 3D NiO–Ni anode is simple and scalable for practical applications.

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  • RSC Advances, 2018. London, UK: Royal Society of Chemistry

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  • Publication Title: RSC Advances
  • Volume: 8
  • Pages: 1-8
  • Peer Reviewed: Yes

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UNT Scholarly Works

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  • October 5, 2017

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  • January 15, 2018

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  • January 15, 2018

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  • March 29, 2018, 10:10 p.m.

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Kang, Chiwon; Cha, Eunho; Lee, Sang Hyub & Choi, Wonbong. In situ fabrication of a graphene-coated threedimensional nickel oxide anode for high-capacity lithium-ion batteries, article, January 15, 2018; London, United Kingdom. (digital.library.unt.edu/ark:/67531/metadc1115868/: accessed August 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.