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Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction

NiFe alloy catalysts have received increasing attention due to their low cost, easy availability, and excellent oxygen evolution reaction (OER) catalytic activity. Although it is considered that the co-existence of Ni and Fe is essential for the high catalytic activity, the identification of active...

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Autores principales: Kang, Qiaoling, Lai, Dawei, Tang, Wenyin, Lu, Qingyi, Gao, Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8179442/
https://www.ncbi.nlm.nih.gov/pubmed/34163652
http://dx.doi.org/10.1039/d0sc06716d
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author Kang, Qiaoling
Lai, Dawei
Tang, Wenyin
Lu, Qingyi
Gao, Feng
author_facet Kang, Qiaoling
Lai, Dawei
Tang, Wenyin
Lu, Qingyi
Gao, Feng
author_sort Kang, Qiaoling
collection PubMed
description NiFe alloy catalysts have received increasing attention due to their low cost, easy availability, and excellent oxygen evolution reaction (OER) catalytic activity. Although it is considered that the co-existence of Ni and Fe is essential for the high catalytic activity, the identification of active sites and the mechanism of OER in NiFe alloy catalysts have been controversial for a long time. This review focuses on the catalytic centers of NiFe alloys and the related mechanism in the alkaline water oxidation process from the perspective of crystal structure/composition modulation and structural design. Briefly, amorphous structures, metastable phases, heteroatom doping and in situ formation of oxyhydroxides are encouraged to optimize the chemical configurations of active sites toward intrinsically boosted OER kinetics. Furthermore, the construction of dual-metal single atoms, specific nanostructures, carbon material supports and composite structures are introduced to increase the abundance of active sites and promote mass transportation. Finally, a perspective on the future development of NiFe alloy electrocatalysts is offered. The overall aim of this review is to shed light on the exploration of novel electrocatalysts in the field of energy.
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spelling pubmed-81794422021-06-22 Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction Kang, Qiaoling Lai, Dawei Tang, Wenyin Lu, Qingyi Gao, Feng Chem Sci Chemistry NiFe alloy catalysts have received increasing attention due to their low cost, easy availability, and excellent oxygen evolution reaction (OER) catalytic activity. Although it is considered that the co-existence of Ni and Fe is essential for the high catalytic activity, the identification of active sites and the mechanism of OER in NiFe alloy catalysts have been controversial for a long time. This review focuses on the catalytic centers of NiFe alloys and the related mechanism in the alkaline water oxidation process from the perspective of crystal structure/composition modulation and structural design. Briefly, amorphous structures, metastable phases, heteroatom doping and in situ formation of oxyhydroxides are encouraged to optimize the chemical configurations of active sites toward intrinsically boosted OER kinetics. Furthermore, the construction of dual-metal single atoms, specific nanostructures, carbon material supports and composite structures are introduced to increase the abundance of active sites and promote mass transportation. Finally, a perspective on the future development of NiFe alloy electrocatalysts is offered. The overall aim of this review is to shed light on the exploration of novel electrocatalysts in the field of energy. The Royal Society of Chemistry 2021-02-11 /pmc/articles/PMC8179442/ /pubmed/34163652 http://dx.doi.org/10.1039/d0sc06716d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Kang, Qiaoling
Lai, Dawei
Tang, Wenyin
Lu, Qingyi
Gao, Feng
Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title_full Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title_fullStr Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title_full_unstemmed Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title_short Intrinsic activity modulation and structural design of NiFe alloy catalysts for an efficient oxygen evolution reaction
title_sort intrinsic activity modulation and structural design of nife alloy catalysts for an efficient oxygen evolution reaction
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8179442/
https://www.ncbi.nlm.nih.gov/pubmed/34163652
http://dx.doi.org/10.1039/d0sc06716d
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AT luqingyi intrinsicactivitymodulationandstructuraldesignofnifealloycatalystsforanefficientoxygenevolutionreaction
AT gaofeng intrinsicactivitymodulationandstructuraldesignofnifealloycatalystsforanefficientoxygenevolutionreaction