Novel Co-MOF/Graphene Oxide Electrocatalyst for Methanol Oxidation

Rimsha Mehek; Naseem Iqbal; Tayyaba Noor; Habib Nasir; Yasir Mehmood; Safeer Ahmed

doi:10.1016/j.electacta.2017.09.164

Novel Co-MOF/Graphene Oxide Electrocatalyst for Methanol Oxidation

Rimsha Mehek, Naseem Iqbal^*, Tayyaba Noor, Habib Nasir, Yasir Mehmood, Safeer Ahmed

^*Corresponding author for this work

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

166 Scopus citations

Abstract

In this work the catalytic activity of cobalt based MOF and its composites with graphene oxide (GO) towards electrochemical oxidation of methanol is studied. Co-MOF-71 and its GO composites were prepared by hydrothermal method and characterized by X-ray diffraction, XPS, scanning electron microscopy and FTIR. XRD patterns revealed incorporation of GO without disturbing the crystal structure. The synthesized catalysts were tested for their electrocatalytic activity for methanol oxidation reaction (MOR) in alkaline medium. The electrochemical parameters measured with modified GCE represent the effect of graphene oxide on methanol oxidation reaction catalysed by Co-MOF-71. Co-MOF-71/GO composite showed excellent peak current density (29.1 mA/cm²) at lower potential (0.1 V) and scan rate of 50 mV/s. The enhanced electrochemical activity and stability is attributed to the synergetic effect of the MOF and the GO substrate for methanol oxidation.

Original language	English
Pages (from-to)	195-204
Number of pages	10
Journal	Electrochimica Acta
Volume	255
DOIs	https://doi.org/10.1016/j.electacta.2017.09.164
State	Published - 20 Nov 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

Direct Methanol Fuel Cell
Graphene Oxide (GO)
Metal Organic Framework (MOF)
Methanol Oxidation Reaction

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

UN SDGs

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

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10.1016/j.electacta.2017.09.164

Cite this

@article{f20b3e6677f443f09834c06b57f6da45,

title = "Novel Co-MOF/Graphene Oxide Electrocatalyst for Methanol Oxidation",

abstract = "In this work the catalytic activity of cobalt based MOF and its composites with graphene oxide (GO) towards electrochemical oxidation of methanol is studied. Co-MOF-71 and its GO composites were prepared by hydrothermal method and characterized by X-ray diffraction, XPS, scanning electron microscopy and FTIR. XRD patterns revealed incorporation of GO without disturbing the crystal structure. The synthesized catalysts were tested for their electrocatalytic activity for methanol oxidation reaction (MOR) in alkaline medium. The electrochemical parameters measured with modified GCE represent the effect of graphene oxide on methanol oxidation reaction catalysed by Co-MOF-71. Co-MOF-71/GO composite showed excellent peak current density (29.1 mA/cm2) at lower potential (0.1 V) and scan rate of 50 mV/s. The enhanced electrochemical activity and stability is attributed to the synergetic effect of the MOF and the GO substrate for methanol oxidation.",

keywords = "Direct Methanol Fuel Cell, Graphene Oxide (GO), Metal Organic Framework (MOF), Methanol Oxidation Reaction",

author = "Rimsha Mehek and Naseem Iqbal and Tayyaba Noor and Habib Nasir and Yasir Mehmood and Safeer Ahmed",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = nov,

day = "20",

doi = "10.1016/j.electacta.2017.09.164",

language = "English",

volume = "255",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - Novel Co-MOF/Graphene Oxide Electrocatalyst for Methanol Oxidation

AU - Mehek, Rimsha

AU - Iqbal, Naseem

AU - Noor, Tayyaba

AU - Nasir, Habib

AU - Mehmood, Yasir

AU - Ahmed, Safeer

PY - 2017/11/20

Y1 - 2017/11/20

N2 - In this work the catalytic activity of cobalt based MOF and its composites with graphene oxide (GO) towards electrochemical oxidation of methanol is studied. Co-MOF-71 and its GO composites were prepared by hydrothermal method and characterized by X-ray diffraction, XPS, scanning electron microscopy and FTIR. XRD patterns revealed incorporation of GO without disturbing the crystal structure. The synthesized catalysts were tested for their electrocatalytic activity for methanol oxidation reaction (MOR) in alkaline medium. The electrochemical parameters measured with modified GCE represent the effect of graphene oxide on methanol oxidation reaction catalysed by Co-MOF-71. Co-MOF-71/GO composite showed excellent peak current density (29.1 mA/cm2) at lower potential (0.1 V) and scan rate of 50 mV/s. The enhanced electrochemical activity and stability is attributed to the synergetic effect of the MOF and the GO substrate for methanol oxidation.

AB - In this work the catalytic activity of cobalt based MOF and its composites with graphene oxide (GO) towards electrochemical oxidation of methanol is studied. Co-MOF-71 and its GO composites were prepared by hydrothermal method and characterized by X-ray diffraction, XPS, scanning electron microscopy and FTIR. XRD patterns revealed incorporation of GO without disturbing the crystal structure. The synthesized catalysts were tested for their electrocatalytic activity for methanol oxidation reaction (MOR) in alkaline medium. The electrochemical parameters measured with modified GCE represent the effect of graphene oxide on methanol oxidation reaction catalysed by Co-MOF-71. Co-MOF-71/GO composite showed excellent peak current density (29.1 mA/cm2) at lower potential (0.1 V) and scan rate of 50 mV/s. The enhanced electrochemical activity and stability is attributed to the synergetic effect of the MOF and the GO substrate for methanol oxidation.

KW - Direct Methanol Fuel Cell

KW - Graphene Oxide (GO)

KW - Metal Organic Framework (MOF)

KW - Methanol Oxidation Reaction

UR - https://www.scopus.com/pages/publications/85030663803

U2 - 10.1016/j.electacta.2017.09.164

DO - 10.1016/j.electacta.2017.09.164

M3 - Article

AN - SCOPUS:85030663803

SN - 0013-4686

VL - 255

SP - 195

EP - 204

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Novel Co-MOF/Graphene Oxide Electrocatalyst for Methanol Oxidation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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