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Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation
Enhancing the inherent activity of transition metal-based compounds involving Ni and Fe for the electrocatalytic oxygen evolution reaction (OER) is of vital importance, especially NiFe layered double hydroxide (LDH). Here, we doped erbium (Er) into NiFe LDH (Er–NiFe LDH) nanostructures using simple...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10483838/ https://www.ncbi.nlm.nih.gov/pubmed/37693173 http://dx.doi.org/10.3389/fchem.2023.1261332 |
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author | Yang, Jitao Yang, Yibin |
author_facet | Yang, Jitao Yang, Yibin |
author_sort | Yang, Jitao |
collection | PubMed |
description | Enhancing the inherent activity of transition metal-based compounds involving Ni and Fe for the electrocatalytic oxygen evolution reaction (OER) is of vital importance, especially NiFe layered double hydroxide (LDH). Here, we doped erbium (Er) into NiFe LDH (Er–NiFe LDH) nanostructures using simple liquid-phase synthesis. The OER activity tests at the same mass loading demonstrated that Er–NiFe LDH has a smaller overpotential and lower Tafel slope than undoped NiFe LDH and commercial RuO(2) powders, needing only a small overpotential of 243 mV to achieve a constant current at 10 mA cm(-2). Additionally, Er–NiFe LDH was grown in situ on hydrophilic carbon paper substrates (Er–NiFe LDH@CP) to fabricate a three-dimensional (3D) electrode with large catalyst loading, which is favorable for analyzing the stability of morphology structure and elementary components after OER measurement. The galvanostatic measurement suggested that the Er–NiFe LDH@CP electrode possess higher electrochemical durability than a modified glassy carbon electrode due to the stronger mechanical binding between Er–NiFe LDH nanostructures and carbon paper substrate. More importantly, physical characterizations (e.g., SEM and XPS) revealed that Er–NiFe LDH has an excellent stability of morphology, and Ni, Fe, and Er still exist on the catalyst 24 h after the operation. This work provides an effective way for improving the inherent catalytic activity and stability of polymetallic OER catalysts in the future. |
format | Online Article Text |
id | pubmed-10483838 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-104838382023-09-08 Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation Yang, Jitao Yang, Yibin Front Chem Chemistry Enhancing the inherent activity of transition metal-based compounds involving Ni and Fe for the electrocatalytic oxygen evolution reaction (OER) is of vital importance, especially NiFe layered double hydroxide (LDH). Here, we doped erbium (Er) into NiFe LDH (Er–NiFe LDH) nanostructures using simple liquid-phase synthesis. The OER activity tests at the same mass loading demonstrated that Er–NiFe LDH has a smaller overpotential and lower Tafel slope than undoped NiFe LDH and commercial RuO(2) powders, needing only a small overpotential of 243 mV to achieve a constant current at 10 mA cm(-2). Additionally, Er–NiFe LDH was grown in situ on hydrophilic carbon paper substrates (Er–NiFe LDH@CP) to fabricate a three-dimensional (3D) electrode with large catalyst loading, which is favorable for analyzing the stability of morphology structure and elementary components after OER measurement. The galvanostatic measurement suggested that the Er–NiFe LDH@CP electrode possess higher electrochemical durability than a modified glassy carbon electrode due to the stronger mechanical binding between Er–NiFe LDH nanostructures and carbon paper substrate. More importantly, physical characterizations (e.g., SEM and XPS) revealed that Er–NiFe LDH has an excellent stability of morphology, and Ni, Fe, and Er still exist on the catalyst 24 h after the operation. This work provides an effective way for improving the inherent catalytic activity and stability of polymetallic OER catalysts in the future. Frontiers Media S.A. 2023-08-24 /pmc/articles/PMC10483838/ /pubmed/37693173 http://dx.doi.org/10.3389/fchem.2023.1261332 Text en Copyright © 2023 Yang and Yang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Yang, Jitao Yang, Yibin Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title | Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title_full | Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title_fullStr | Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title_full_unstemmed | Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title_short | Boosting the inherent activity of NiFe layered double hydroxide via erbium incorporation for water oxidation |
title_sort | boosting the inherent activity of nife layered double hydroxide via erbium incorporation for water oxidation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10483838/ https://www.ncbi.nlm.nih.gov/pubmed/37693173 http://dx.doi.org/10.3389/fchem.2023.1261332 |
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