The influence of Co3V2O8 morphology on the oxygen evolution reaction activity and stability

Suyeon Hyun; Vignesh Ahilan; Hasuck Kim; Sangaraju Shanmugam

doi:10.1016/j.elecom.2015.12.012

The influence of Co₃V₂O₈ morphology on the oxygen evolution reaction activity and stability

Suyeon Hyun, Vignesh Ahilan, Hasuck Kim, Sangaraju Shanmugam

Department of Energy and Science and Engineering

Daegu Gyeongbuk Institute of Science and Technology

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

40 Scopus citations

Abstract

The effect of Co₃V₂O₈ morphology on the electrocatalytic oxygen evolution reaction (OER) activity was evaluated using one- and zero-dimensional nanostructures. The microscopic analyses reveal the existence of thin coating of nitrogen-doped amorphous carbon on the surface of Co₃V₂O₈ nanostructures. The 1D-Co₃V₂O₈ electrocatalyst delivers 10 mA cm^-2 at overpotential of 0.350 V versus reversible hydrogen electrode for OER in 0.1 M KOH, whereas 0D-Co₃V₂O₈ catalyst showed 0.397 V, benefited from the morphological characteristics of 1D. Moreover, the 1D-Co₃V₂O₈ catalyst exhibits much lower OER overpotential than that of commercial noble metal oxide catalysts, RuO₂ (0.41 V) and Pt/C (0.79 V).

Original language	English
Pages (from-to)	44-47
Number of pages	4
Journal	Electrochemistry Communications
Volume	63
DOIs	https://doi.org/10.1016/j.elecom.2015.12.012
State	Published - Feb 2016

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Keywords

CoVO
Electrocatalysis
Electrospinning
Nitrogen-doped carbon
Oxygen evolution reaction

Access to Document

10.1016/j.elecom.2015.12.012

Cite this

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title = "The influence of Co3V2O8 morphology on the oxygen evolution reaction activity and stability",

abstract = "The effect of Co3V2O8 morphology on the electrocatalytic oxygen evolution reaction (OER) activity was evaluated using one- and zero-dimensional nanostructures. The microscopic analyses reveal the existence of thin coating of nitrogen-doped amorphous carbon on the surface of Co3V2O8 nanostructures. The 1D-Co3V2O8 electrocatalyst delivers 10 mA cm-2 at overpotential of 0.350 V versus reversible hydrogen electrode for OER in 0.1 M KOH, whereas 0D-Co3V2O8 catalyst showed 0.397 V, benefited from the morphological characteristics of 1D. Moreover, the 1D-Co3V2O8 catalyst exhibits much lower OER overpotential than that of commercial noble metal oxide catalysts, RuO2 (0.41 V) and Pt/C (0.79 V).",

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AU - Hyun, Suyeon

AU - Ahilan, Vignesh

AU - Kim, Hasuck

AU - Shanmugam, Sangaraju

PY - 2016/2

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AB - The effect of Co3V2O8 morphology on the electrocatalytic oxygen evolution reaction (OER) activity was evaluated using one- and zero-dimensional nanostructures. The microscopic analyses reveal the existence of thin coating of nitrogen-doped amorphous carbon on the surface of Co3V2O8 nanostructures. The 1D-Co3V2O8 electrocatalyst delivers 10 mA cm-2 at overpotential of 0.350 V versus reversible hydrogen electrode for OER in 0.1 M KOH, whereas 0D-Co3V2O8 catalyst showed 0.397 V, benefited from the morphological characteristics of 1D. Moreover, the 1D-Co3V2O8 catalyst exhibits much lower OER overpotential than that of commercial noble metal oxide catalysts, RuO2 (0.41 V) and Pt/C (0.79 V).

KW - CoVO

KW - Electrocatalysis

KW - Electrospinning

KW - Nitrogen-doped carbon

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