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Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction

A key challenge in the development of sustainable water-splitting (WS) systems is the formulation of electrodes by efficient combinations of electrocatalyst and binder materials. Cellulose, a biopolymer, can be considered an excellent dispersing agent and binder that can replace high-cost synthetic...

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Autores principales: Thangarasu, Sadhasivam, Baby, Nimisha, Bhosale, Mrunal, Lee, Jaeman, Jeong, Changseong, Oh, Tae-Hwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10671088/
https://www.ncbi.nlm.nih.gov/pubmed/38003475
http://dx.doi.org/10.3390/ijms242216282
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author Thangarasu, Sadhasivam
Baby, Nimisha
Bhosale, Mrunal
Lee, Jaeman
Jeong, Changseong
Oh, Tae-Hwan
author_facet Thangarasu, Sadhasivam
Baby, Nimisha
Bhosale, Mrunal
Lee, Jaeman
Jeong, Changseong
Oh, Tae-Hwan
author_sort Thangarasu, Sadhasivam
collection PubMed
description A key challenge in the development of sustainable water-splitting (WS) systems is the formulation of electrodes by efficient combinations of electrocatalyst and binder materials. Cellulose, a biopolymer, can be considered an excellent dispersing agent and binder that can replace high-cost synthetic polymers to construct low-cost electrodes. Herein, a novel electrocatalyst was fabricated by combining Fe(2)O(3) and Ni on microcrystalline cellulose (MCC) without the use of any additional binder. Structural characterization techniques confirmed the formation of the Fe(2)O(3)–Ni nanocomposite. Microstructural studies confirmed the homogeneity of the ~50 nm-sized Fe(2)O(3)–Ni on MCC. The WS performance, which involves the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), was evaluated using a 1 M KOH electrolyte solution. The Fe(2)O(3)–Ni nanocomposite on MCC displayed an efficient performance toward lowering the overpotential in both the HER (163 mV @ 10 mA cm(−2)) and OER (360 mV @ 10 mA cm(−2)). These results demonstrate that MCC facilitated the cohesive binding of electrocatalyst materials and attachment to the substrate surface. In the future, modified cellulose-based structures (such as functionalized gels and those dissolved in various media) can be used as efficient binder materials and alternative options for preparing electrodes for WS applications.
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spelling pubmed-106710882023-11-14 Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction Thangarasu, Sadhasivam Baby, Nimisha Bhosale, Mrunal Lee, Jaeman Jeong, Changseong Oh, Tae-Hwan Int J Mol Sci Article A key challenge in the development of sustainable water-splitting (WS) systems is the formulation of electrodes by efficient combinations of electrocatalyst and binder materials. Cellulose, a biopolymer, can be considered an excellent dispersing agent and binder that can replace high-cost synthetic polymers to construct low-cost electrodes. Herein, a novel electrocatalyst was fabricated by combining Fe(2)O(3) and Ni on microcrystalline cellulose (MCC) without the use of any additional binder. Structural characterization techniques confirmed the formation of the Fe(2)O(3)–Ni nanocomposite. Microstructural studies confirmed the homogeneity of the ~50 nm-sized Fe(2)O(3)–Ni on MCC. The WS performance, which involves the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), was evaluated using a 1 M KOH electrolyte solution. The Fe(2)O(3)–Ni nanocomposite on MCC displayed an efficient performance toward lowering the overpotential in both the HER (163 mV @ 10 mA cm(−2)) and OER (360 mV @ 10 mA cm(−2)). These results demonstrate that MCC facilitated the cohesive binding of electrocatalyst materials and attachment to the substrate surface. In the future, modified cellulose-based structures (such as functionalized gels and those dissolved in various media) can be used as efficient binder materials and alternative options for preparing electrodes for WS applications. MDPI 2023-11-14 /pmc/articles/PMC10671088/ /pubmed/38003475 http://dx.doi.org/10.3390/ijms242216282 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Thangarasu, Sadhasivam
Baby, Nimisha
Bhosale, Mrunal
Lee, Jaeman
Jeong, Changseong
Oh, Tae-Hwan
Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title_full Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title_fullStr Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title_full_unstemmed Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title_short Fe(2)O(3)/Ni Nanocomposite Electrocatalyst on Cellulose for Hydrogen Evolution Reaction and Oxygen Evolution Reaction
title_sort fe(2)o(3)/ni nanocomposite electrocatalyst on cellulose for hydrogen evolution reaction and oxygen evolution reaction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10671088/
https://www.ncbi.nlm.nih.gov/pubmed/38003475
http://dx.doi.org/10.3390/ijms242216282
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