Remarkable electrochemical properties of electrochemically reduced graphene oxide towards oxygen reduction reaction are caused by residual metal-based impurities

Lu Wang; Chun Kiang Chua; Bahareh Khezri; Richard D. Webster; Martin Pumera

doi:10.1016/j.elecom.2015.10.020

Remarkable electrochemical properties of electrochemically reduced graphene oxide towards oxygen reduction reaction are caused by residual metal-based impurities

Lu Wang, Chun Kiang Chua, Bahareh Khezri, Richard D. Webster, Martin Pumera^*

^*Corresponding author for this work

Nanyang Technological University

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

32 Citations (Scopus)

Abstract

Oxygen reduction reaction (ORR) is one of the most important electrochemical reactions in the field of energy storage. Remarkable catalytic properties towards ORR at "metal-free" electrochemically reduced graphene oxide (ErGO) were previously reported. We demonstrate here that the remarkable enhancement towards ORR of a "metal-free" ErGO is caused by residual metallic impurities instead of ErGO itself.

Original language	English
Pages (from-to)	17-20
Number of pages	4
Journal	Electrochemistry Communications
Volume	62
DOIs	https://doi.org/10.1016/j.elecom.2015.10.020
Publication status	Published - Jan 1 2016
Externally published	Yes

Bibliographical note

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

ASJC Scopus Subject Areas

Electrochemistry

Keywords

Electrochemically reduced graphene oxide
Impurities
Manganese
Oxygen reduction reaction

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10.1016/j.elecom.2015.10.020

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AU - Wang, Lu

AU - Chua, Chun Kiang

AU - Khezri, Bahareh

AU - Webster, Richard D.

AU - Pumera, Martin

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Oxygen reduction reaction (ORR) is one of the most important electrochemical reactions in the field of energy storage. Remarkable catalytic properties towards ORR at "metal-free" electrochemically reduced graphene oxide (ErGO) were previously reported. We demonstrate here that the remarkable enhancement towards ORR of a "metal-free" ErGO is caused by residual metallic impurities instead of ErGO itself.

AB - Oxygen reduction reaction (ORR) is one of the most important electrochemical reactions in the field of energy storage. Remarkable catalytic properties towards ORR at "metal-free" electrochemically reduced graphene oxide (ErGO) were previously reported. We demonstrate here that the remarkable enhancement towards ORR of a "metal-free" ErGO is caused by residual metallic impurities instead of ErGO itself.

KW - Electrochemically reduced graphene oxide

KW - Impurities

KW - Manganese

KW - Oxygen reduction reaction

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JF - Electrochemistry Communications

ER -

Remarkable electrochemical properties of electrochemically reduced graphene oxide towards oxygen reduction reaction are caused by residual metal-based impurities

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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