Electrodeposited nanostructured CoFe2O4 for overall water splitting and supercapacitor applications

Chunyang Zhang; Sanket Bhoyate; Chen Zhao; Pawan K. Kahol; Nikolaos Kostoglou; Christian Mitterer; Steven J. Hinder; Mark A. Baker; Georgios Constantinides; Kyriaki Polychronopoulou; Claus Rebholz; Ram K. Gupta

doi:10.3390/catal9020176

Electrodeposited nanostructured CoFe₂O₄ for overall water splitting and supercapacitor applications

Chunyang Zhang, Sanket Bhoyate, Chen Zhao, Pawan K. Kahol, Nikolaos Kostoglou, Christian Mitterer, Steven J. Hinder, Mark A. Baker, Georgios Constantinides, Kyriaki Polychronopoulou, Claus Rebholz, Ram K. Gupta

Mechanical & Nuclear Engineering

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

71 Scopus citations

Abstract

To contribute to solving global energy problems, a multifunctional CoFe₂O₄ spinel was synthesized and used as a catalyst for overall water splitting and as an electrode material for supercapacitors. The ultra-fast one-step electrodeposition of CoFe₂O₄ over conducting substrates provides an economic pathway to high-performance energy devices. Electrodeposited CoFe₂O₄ on Ni-foam showed a low overpotential of 270 mV and a Tafel slope of 31 mV/dec. The results indicated a higher conductivity for electrodeposited compared with dip-coated CoFe₂O₄ with enhanced device performance. Moreover, bending and chronoamperometry studies suggest excellent durability of the catalytic electrode for long-term use. The energy storage behavior of CoFe₂O₄ showed high specific capacitance of 768 F/g at a current density of 0.5 A/g and maintained about 80% retention after 10,000 cycles. These results demonstrate the competitiveness and multifunctional applicability of the CoFe₂O₄ spinel to be used for energy generation and storage devices.

Original language	British English
Article number	176
Journal	Catalysts
Volume	9
Issue number	2
DOIs	https://doi.org/10.3390/catal9020176
State	Published - Feb 2019

Keywords

CoFeO
HER
OER
Overall water splitting
Supercapacitor

UN SDGs

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

Access to Document

10.3390/catal9020176

Cite this

@article{4d5d8fdaa7ce4853a798f6d3e306a107,

title = "Electrodeposited nanostructured CoFe2O4 for overall water splitting and supercapacitor applications",

abstract = "To contribute to solving global energy problems, a multifunctional CoFe2O4 spinel was synthesized and used as a catalyst for overall water splitting and as an electrode material for supercapacitors. The ultra-fast one-step electrodeposition of CoFe2O4 over conducting substrates provides an economic pathway to high-performance energy devices. Electrodeposited CoFe2O4 on Ni-foam showed a low overpotential of 270 mV and a Tafel slope of 31 mV/dec. The results indicated a higher conductivity for electrodeposited compared with dip-coated CoFe2O4 with enhanced device performance. Moreover, bending and chronoamperometry studies suggest excellent durability of the catalytic electrode for long-term use. The energy storage behavior of CoFe2O4 showed high specific capacitance of 768 F/g at a current density of 0.5 A/g and maintained about 80% retention after 10,000 cycles. These results demonstrate the competitiveness and multifunctional applicability of the CoFe2O4 spinel to be used for energy generation and storage devices.",

keywords = "CoFeO, HER, OER, Overall water splitting, Supercapacitor",

author = "Chunyang Zhang and Sanket Bhoyate and Chen Zhao and Kahol, {Pawan K.} and Nikolaos Kostoglou and Christian Mitterer and Hinder, {Steven J.} and Baker, {Mark A.} and Georgios Constantinides and Kyriaki Polychronopoulou and Claus Rebholz and Gupta, {Ram K.}",

note = "Funding Information: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Ram K. Gupta expresses his sincere acknowledgment to the Polymer Chemistry Program and the Kansas Polymer Research Center, Pittsburg State University, for providing financial and research support to complete this project. Funding Information: Funding: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2019",

month = feb,

doi = "10.3390/catal9020176",

language = "British English",

volume = "9",

journal = "Catalysts",

issn = "2073-4344",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "2",

}

TY - JOUR

T1 - Electrodeposited nanostructured CoFe2O4 for overall water splitting and supercapacitor applications

AU - Zhang, Chunyang

AU - Bhoyate, Sanket

AU - Zhao, Chen

AU - Kahol, Pawan K.

AU - Kostoglou, Nikolaos

AU - Mitterer, Christian

AU - Hinder, Steven J.

AU - Baker, Mark A.

AU - Constantinides, Georgios

AU - Polychronopoulou, Kyriaki

AU - Rebholz, Claus

AU - Gupta, Ram K.

N1 - Funding Information: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Ram K. Gupta expresses his sincere acknowledgment to the Polymer Chemistry Program and the Kansas Polymer Research Center, Pittsburg State University, for providing financial and research support to complete this project. Funding Information: Funding: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Publisher Copyright: © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2019/2

Y1 - 2019/2

N2 - To contribute to solving global energy problems, a multifunctional CoFe2O4 spinel was synthesized and used as a catalyst for overall water splitting and as an electrode material for supercapacitors. The ultra-fast one-step electrodeposition of CoFe2O4 over conducting substrates provides an economic pathway to high-performance energy devices. Electrodeposited CoFe2O4 on Ni-foam showed a low overpotential of 270 mV and a Tafel slope of 31 mV/dec. The results indicated a higher conductivity for electrodeposited compared with dip-coated CoFe2O4 with enhanced device performance. Moreover, bending and chronoamperometry studies suggest excellent durability of the catalytic electrode for long-term use. The energy storage behavior of CoFe2O4 showed high specific capacitance of 768 F/g at a current density of 0.5 A/g and maintained about 80% retention after 10,000 cycles. These results demonstrate the competitiveness and multifunctional applicability of the CoFe2O4 spinel to be used for energy generation and storage devices.

AB - To contribute to solving global energy problems, a multifunctional CoFe2O4 spinel was synthesized and used as a catalyst for overall water splitting and as an electrode material for supercapacitors. The ultra-fast one-step electrodeposition of CoFe2O4 over conducting substrates provides an economic pathway to high-performance energy devices. Electrodeposited CoFe2O4 on Ni-foam showed a low overpotential of 270 mV and a Tafel slope of 31 mV/dec. The results indicated a higher conductivity for electrodeposited compared with dip-coated CoFe2O4 with enhanced device performance. Moreover, bending and chronoamperometry studies suggest excellent durability of the catalytic electrode for long-term use. The energy storage behavior of CoFe2O4 showed high specific capacitance of 768 F/g at a current density of 0.5 A/g and maintained about 80% retention after 10,000 cycles. These results demonstrate the competitiveness and multifunctional applicability of the CoFe2O4 spinel to be used for energy generation and storage devices.

KW - CoFeO

KW - HER

KW - OER

KW - Overall water splitting

KW - Supercapacitor

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DO - 10.3390/catal9020176

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AN - SCOPUS:85062852212

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