CoMn2O4 nanoparticles anchored on nitrogen-doped graphene nanosheets as bifunctional electrocatalyst for rechargeable zinc-air battery

Moni Prabu; Prakash Ramakrishnan; Sangaraju Shanmugam

doi:10.1016/j.elecom.2014.01.027

CoMn₂O₄ nanoparticles anchored on nitrogen-doped graphene nanosheets as bifunctional electrocatalyst for rechargeable zinc-air battery

Moni Prabu
, Prakash Ramakrishnan
, Sangaraju Shanmugam

Department of Energy and Science and Engineering

Daegu Gyeongbuk Institute of Science and Technology

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

178 Scopus citations

Abstract

CoMn₂O₄ nanoparticles supported on N-doped reduced graphene oxide (CoMn₂O₄/N-rGO), for rechargeable zinc-air battery were prepared by a hydrothermal method. The CoMn₂O ₄ supported on nitrogen-doped graphene oxide showed better oxygen electrode potential compared with CoMn₂O₄ dispersed on graphene oxide. The zinc-air battery can be reversibly charged/discharged for hundred cycles with a good cycle performance. The improved battery performance of CoMn₂O₄/N-rGO can be attributed to the synergistic effect of covalently coupling between the nitrogen-doped graphene sheets and spinel cobalt manganese oxide.

Original language	English
Pages (from-to)	59-63
Number of pages	5
Journal	Electrochemistry Communications
Volume	41
DOIs	https://doi.org/10.1016/j.elecom.2014.01.027
State	Published - Apr 2014

Bibliographical note

Funding Information:
This work was supported by the DGIST R&D Program ( 14-BD-01 ) of the Ministry of Education, Science and Technology of Korea .

Keywords

Bifunctional electrocatalyst
Nitrogen-doped graphene
Spinel
Zinc-air battery

Access to Document

10.1016/j.elecom.2014.01.027

Cite this

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title = "CoMn2O4 nanoparticles anchored on nitrogen-doped graphene nanosheets as bifunctional electrocatalyst for rechargeable zinc-air battery",

abstract = "CoMn2O4 nanoparticles supported on N-doped reduced graphene oxide (CoMn2O4/N-rGO), for rechargeable zinc-air battery were prepared by a hydrothermal method. The CoMn2O 4 supported on nitrogen-doped graphene oxide showed better oxygen electrode potential compared with CoMn2O4 dispersed on graphene oxide. The zinc-air battery can be reversibly charged/discharged for hundred cycles with a good cycle performance. The improved battery performance of CoMn2O4/N-rGO can be attributed to the synergistic effect of covalently coupling between the nitrogen-doped graphene sheets and spinel cobalt manganese oxide.",

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author = "Moni Prabu and Prakash Ramakrishnan and Sangaraju Shanmugam",

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AU - Prabu, Moni

AU - Ramakrishnan, Prakash

AU - Shanmugam, Sangaraju

N1 - Funding Information: This work was supported by the DGIST R&D Program ( 14-BD-01 ) of the Ministry of Education, Science and Technology of Korea .

PY - 2014/4

Y1 - 2014/4

N2 - CoMn2O4 nanoparticles supported on N-doped reduced graphene oxide (CoMn2O4/N-rGO), for rechargeable zinc-air battery were prepared by a hydrothermal method. The CoMn2O 4 supported on nitrogen-doped graphene oxide showed better oxygen electrode potential compared with CoMn2O4 dispersed on graphene oxide. The zinc-air battery can be reversibly charged/discharged for hundred cycles with a good cycle performance. The improved battery performance of CoMn2O4/N-rGO can be attributed to the synergistic effect of covalently coupling between the nitrogen-doped graphene sheets and spinel cobalt manganese oxide.

AB - CoMn2O4 nanoparticles supported on N-doped reduced graphene oxide (CoMn2O4/N-rGO), for rechargeable zinc-air battery were prepared by a hydrothermal method. The CoMn2O 4 supported on nitrogen-doped graphene oxide showed better oxygen electrode potential compared with CoMn2O4 dispersed on graphene oxide. The zinc-air battery can be reversibly charged/discharged for hundred cycles with a good cycle performance. The improved battery performance of CoMn2O4/N-rGO can be attributed to the synergistic effect of covalently coupling between the nitrogen-doped graphene sheets and spinel cobalt manganese oxide.

KW - Bifunctional electrocatalyst

KW - Nitrogen-doped graphene

KW - Spinel

KW - Zinc-air battery

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