Novel MWCNT interconnected NiCo2O4 aerogels prepared by a supercritical CO2 drying method for ethanol electrooxidation in alkaline media

Santhana Sivabalan Jayaseelan; Tae Hoon Ko; S. Radhakrishnan; Cheol Min Yang; Hak Yong Kim; Byoung Suhk Kim

doi:10.1016/j.ijhydene.2016.05.175

Novel MWCNT interconnected NiCo₂O₄ aerogels prepared by a supercritical CO₂ drying method for ethanol electrooxidation in alkaline media

Santhana Sivabalan Jayaseelan
, Tae Hoon Ko
, S. Radhakrishnan
, Cheol Min Yang
, Hak Yong Kim
, Byoung Suhk Kim^*

^*Corresponding author for this work

Department of Organic Materials and Textile Engineering

Research output: Contribution to journal › Journal article › peer-review

43 Scopus citations

Abstract

The design and development of an economic and highly active non-precious electro-catalyst for ethanol electro-oxidation is challenging due to expensiveness of the precursors as well as processes and non-Eco friendliness. In this study, a novel preparation of mesoporous NiCo₂O₄-MWCNT nanocomposite aerogels based on sol–gel technique is proposed. Multiwall carbon nanotube (MWCNT)-supported NiCo₂O₄ nanocomposite aerogels as an efficient catalyst for the ethanol electro-oxidation is reported. The MWCNTs exhibit an interconnected fibrous network with uniform dispersion of NiCo₂O₄ nanoparticles. The effects of MWCNT concentration on the ethanol electro-oxidation of MWCNT/NiCo₂O₄ aerogels are studied. We found that using a proper loading of MWCNTs allowed us to reach higher current densities for the oxidation of ethanol in an alkaline media. The highly porous and fibrous MWCNT/NiCo₂O₄ aerogels are the promising electro-catalysts for the oxidation of a direct ethanol fuel cell.

Original language	English
Pages (from-to)	13504-13512
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	41
Issue number	31
DOIs	https://doi.org/10.1016/j.ijhydene.2016.05.175
State	Published - 2016.08.17

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Aerogels
Electro-oxidation
Ethanol oxidation
Fuel cell
Nickel cobaltite

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum
Physics & Astronomy

Access to Document

10.1016/j.ijhydene.2016.05.175

Cite this

@article{2a7fc333c8aa4c4cbf9e4aa6ca440c55,

title = "Novel MWCNT interconnected NiCo2O4 aerogels prepared by a supercritical CO2 drying method for ethanol electrooxidation in alkaline media",

abstract = "The design and development of an economic and highly active non-precious electro-catalyst for ethanol electro-oxidation is challenging due to expensiveness of the precursors as well as processes and non-Eco friendliness. In this study, a novel preparation of mesoporous NiCo2O4-MWCNT nanocomposite aerogels based on sol–gel technique is proposed. Multiwall carbon nanotube (MWCNT)-supported NiCo2O4 nanocomposite aerogels as an efficient catalyst for the ethanol electro-oxidation is reported. The MWCNTs exhibit an interconnected fibrous network with uniform dispersion of NiCo2O4 nanoparticles. The effects of MWCNT concentration on the ethanol electro-oxidation of MWCNT/NiCo2O4 aerogels are studied. We found that using a proper loading of MWCNTs allowed us to reach higher current densities for the oxidation of ethanol in an alkaline media. The highly porous and fibrous MWCNT/NiCo2O4 aerogels are the promising electro-catalysts for the oxidation of a direct ethanol fuel cell.",

keywords = "Aerogels, Electro-oxidation, Ethanol oxidation, Fuel cell, Nickel cobaltite",

author = "Jayaseelan, \{Santhana Sivabalan\} and Ko, \{Tae Hoon\} and S. Radhakrishnan and Yang, \{Cheol Min\} and Kim, \{Hak Yong\} and Kim, \{Byoung Suhk\}",

note = "Publisher Copyright: {\textcopyright} 2016 Hydrogen Energy Publications LLC",

year = "2016",

month = aug,

day = "17",

doi = "10.1016/j.ijhydene.2016.05.175",

language = "English",

volume = "41",

pages = "13504--13512",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

number = "31",

}

Novel MWCNT interconnected NiCo₂O₄ aerogels prepared by a supercritical CO₂ drying method for ethanol electrooxidation in alkaline media. / Jayaseelan, Santhana Sivabalan; Ko, Tae Hoon; Radhakrishnan, S. et al.
In: International Journal of Hydrogen Energy, Vol. 41, No. 31, 17.08.2016, p. 13504-13512.

Research output: Contribution to journal › Journal article › peer-review

TY - JOUR

T1 - Novel MWCNT interconnected NiCo2O4 aerogels prepared by a supercritical CO2 drying method for ethanol electrooxidation in alkaline media

AU - Jayaseelan, Santhana Sivabalan

AU - Ko, Tae Hoon

AU - Radhakrishnan, S.

AU - Yang, Cheol Min

AU - Kim, Hak Yong

AU - Kim, Byoung Suhk

PY - 2016/8/17

Y1 - 2016/8/17

N2 - The design and development of an economic and highly active non-precious electro-catalyst for ethanol electro-oxidation is challenging due to expensiveness of the precursors as well as processes and non-Eco friendliness. In this study, a novel preparation of mesoporous NiCo2O4-MWCNT nanocomposite aerogels based on sol–gel technique is proposed. Multiwall carbon nanotube (MWCNT)-supported NiCo2O4 nanocomposite aerogels as an efficient catalyst for the ethanol electro-oxidation is reported. The MWCNTs exhibit an interconnected fibrous network with uniform dispersion of NiCo2O4 nanoparticles. The effects of MWCNT concentration on the ethanol electro-oxidation of MWCNT/NiCo2O4 aerogels are studied. We found that using a proper loading of MWCNTs allowed us to reach higher current densities for the oxidation of ethanol in an alkaline media. The highly porous and fibrous MWCNT/NiCo2O4 aerogels are the promising electro-catalysts for the oxidation of a direct ethanol fuel cell.

AB - The design and development of an economic and highly active non-precious electro-catalyst for ethanol electro-oxidation is challenging due to expensiveness of the precursors as well as processes and non-Eco friendliness. In this study, a novel preparation of mesoporous NiCo2O4-MWCNT nanocomposite aerogels based on sol–gel technique is proposed. Multiwall carbon nanotube (MWCNT)-supported NiCo2O4 nanocomposite aerogels as an efficient catalyst for the ethanol electro-oxidation is reported. The MWCNTs exhibit an interconnected fibrous network with uniform dispersion of NiCo2O4 nanoparticles. The effects of MWCNT concentration on the ethanol electro-oxidation of MWCNT/NiCo2O4 aerogels are studied. We found that using a proper loading of MWCNTs allowed us to reach higher current densities for the oxidation of ethanol in an alkaline media. The highly porous and fibrous MWCNT/NiCo2O4 aerogels are the promising electro-catalysts for the oxidation of a direct ethanol fuel cell.

KW - Aerogels

KW - Electro-oxidation

KW - Ethanol oxidation

KW - Fuel cell

KW - Nickel cobaltite

UR - https://www.scopus.com/pages/publications/84991744500

U2 - 10.1016/j.ijhydene.2016.05.175

DO - 10.1016/j.ijhydene.2016.05.175

M3 - Journal article

AN - SCOPUS:84991744500

SN - 0360-3199

VL - 41

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EP - 13512

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

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ER -