Three-dimensional graphene-Co3O4 cathodes for rechargeable Li-O2 batteries

Jiakai Zhang; Pengfa Li; Zhenhua Wang; Jinshuo Qiao; David Rooney; Wang Sun; Kening Sun

doi:10.1039/c4ta05573j

Three-dimensional graphene-Co₃O₄ cathodes for rechargeable Li-O₂ batteries

Jiakai Zhang, Pengfa Li, Zhenhua Wang, Jinshuo Qiao, David Rooney, Wang Sun^*, Kening Sun

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

94 Citations (Scopus)

Abstract

A three-dimensional (3D) graphene-Co₃O₄ electrode was prepared by a two-step method in which graphene was initially deposited on a Ni foam with Co₃O₄ then grown on the resulting graphene structure. Cross-linked Co₃O₄ nanosheets with an open pore structure were fully and vertically distributed throughout the graphene skeleton. The free-standing and binder-free monolithic electrode was used directly as a cathode in a Li-O₂ battery. This composite structure exhibited enhanced performance with a specific capacity of 2453 mA h g^-1 at 0.1 mA cm^-2 and 62 stable cycles with 583 mA h g^-1 (1000 mA h g_carbon^-1). The excellent electrochemical performance is associated with the unique architecture and superior catalytic activity of the 3D electrode.

Original language	English
Pages (from-to)	1504-1510
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	4
DOIs	https://doi.org/10.1039/c4ta05573j
Publication status	Published - 28 Jan 2015

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/c4ta05573j

Cite this

Zhang, J., Li, P., Wang, Z., Qiao, J., Rooney, D., Sun, W., & Sun, K. (2015). Three-dimensional graphene-Co₃O₄ cathodes for rechargeable Li-O₂ batteries. Journal of Materials Chemistry A, 3(4), 1504-1510. https://doi.org/10.1039/c4ta05573j

@article{4856b0804d294c769773bdb8a784cd95,

title = "Three-dimensional graphene-Co3O4 cathodes for rechargeable Li-O2 batteries",

abstract = "A three-dimensional (3D) graphene-Co3O4 electrode was prepared by a two-step method in which graphene was initially deposited on a Ni foam with Co3O4 then grown on the resulting graphene structure. Cross-linked Co3O4 nanosheets with an open pore structure were fully and vertically distributed throughout the graphene skeleton. The free-standing and binder-free monolithic electrode was used directly as a cathode in a Li-O2 battery. This composite structure exhibited enhanced performance with a specific capacity of 2453 mA h g-1 at 0.1 mA cm-2 and 62 stable cycles with 583 mA h g-1 (1000 mA h gcarbon-1). The excellent electrochemical performance is associated with the unique architecture and superior catalytic activity of the 3D electrode.",

author = "Jiakai Zhang and Pengfa Li and Zhenhua Wang and Jinshuo Qiao and David Rooney and Wang Sun and Kening Sun",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

month = jan,

day = "28",

doi = "10.1039/c4ta05573j",

language = "English",

volume = "3",

pages = "1504--1510",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

number = "4",

}

TY - JOUR

T1 - Three-dimensional graphene-Co3O4 cathodes for rechargeable Li-O2 batteries

AU - Zhang, Jiakai

AU - Li, Pengfa

AU - Wang, Zhenhua

AU - Qiao, Jinshuo

AU - Rooney, David

AU - Sun, Wang

AU - Sun, Kening

PY - 2015/1/28

Y1 - 2015/1/28

N2 - A three-dimensional (3D) graphene-Co3O4 electrode was prepared by a two-step method in which graphene was initially deposited on a Ni foam with Co3O4 then grown on the resulting graphene structure. Cross-linked Co3O4 nanosheets with an open pore structure were fully and vertically distributed throughout the graphene skeleton. The free-standing and binder-free monolithic electrode was used directly as a cathode in a Li-O2 battery. This composite structure exhibited enhanced performance with a specific capacity of 2453 mA h g-1 at 0.1 mA cm-2 and 62 stable cycles with 583 mA h g-1 (1000 mA h gcarbon-1). The excellent electrochemical performance is associated with the unique architecture and superior catalytic activity of the 3D electrode.

AB - A three-dimensional (3D) graphene-Co3O4 electrode was prepared by a two-step method in which graphene was initially deposited on a Ni foam with Co3O4 then grown on the resulting graphene structure. Cross-linked Co3O4 nanosheets with an open pore structure were fully and vertically distributed throughout the graphene skeleton. The free-standing and binder-free monolithic electrode was used directly as a cathode in a Li-O2 battery. This composite structure exhibited enhanced performance with a specific capacity of 2453 mA h g-1 at 0.1 mA cm-2 and 62 stable cycles with 583 mA h g-1 (1000 mA h gcarbon-1). The excellent electrochemical performance is associated with the unique architecture and superior catalytic activity of the 3D electrode.

UR - http://www.scopus.com/inward/record.url?scp=84919950831&partnerID=8YFLogxK

U2 - 10.1039/c4ta05573j

DO - 10.1039/c4ta05573j

M3 - Article

AN - SCOPUS:84919950831

SN - 2050-7488

VL - 3

SP - 1504

EP - 1510

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 4

ER -

Three-dimensional graphene-Co₃O₄ cathodes for rechargeable Li-O₂ batteries

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this