Robust hierarchical 3D carbon foam electrode for efficient water electrolysis

Abstract Herein we report a 3D heterostructure comprising a hierarchical macroporous carbon foam that incorporates mesoporous carbon nanotubes decorated with cobalt oxide nanoparticles as an unique and highly efficient electrode material for the oxygen evolution reaction (OER) in electrocatalytic wa...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Tung Ngoc Pham, Tiva Sharifi, Robin Sandström, William Siljebo, Andrey Shchukarev, Krisztian Kordas, Thomas Wågberg, Jyri-Pekka Mikkola
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3c02c1513cfc4a9abf21396386ed1f9d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3c02c1513cfc4a9abf21396386ed1f9d
record_format	dspace
spelling	oai:doaj.org-article:3c02c1513cfc4a9abf21396386ed1f9d2021-12-02T15:06:17ZRobust hierarchical 3D carbon foam electrode for efficient water electrolysis10.1038/s41598-017-05215-12045-2322https://doaj.org/article/3c02c1513cfc4a9abf21396386ed1f9d2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05215-1https://doaj.org/toc/2045-2322Abstract Herein we report a 3D heterostructure comprising a hierarchical macroporous carbon foam that incorporates mesoporous carbon nanotubes decorated with cobalt oxide nanoparticles as an unique and highly efficient electrode material for the oxygen evolution reaction (OER) in electrocatalytic water splitting. The best performing electrode material showed high stability after 10 h, at constant potential of 1.7 V vs. RHE (reversible hydrogen electrode) in a 0.1 M KOH solution and high electrocatalytic activity in OER with low overpotential (0.38 V vs RHE at 10 mA cm−2). The excellent electrocatalytic performance of the electrode is rationalized by the overall 3D macroporous structure and with the firmly integrated CNTs directly grown on the foam, resulting in a large specific surface area, good electrical conductivity, as well as an efficient electrolyte transport into the whole electrode matrix concurrent with an ability to quickly dispose oxygen bubbles into the electrolyte. The eminent properties of the three-dimensional structured carbon matrix, which can be synthesized through a simple, scalable and cost effective pyrolysis process show that it has potential to be implemented in large-scale water electrolysis systems.Tung Ngoc PhamTiva SharifiRobin SandströmWilliam SiljeboAndrey ShchukarevKrisztian KordasThomas WågbergJyri-Pekka MikkolaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tung Ngoc Pham Tiva Sharifi Robin Sandström William Siljebo Andrey Shchukarev Krisztian Kordas Thomas Wågberg Jyri-Pekka Mikkola Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
description	Abstract Herein we report a 3D heterostructure comprising a hierarchical macroporous carbon foam that incorporates mesoporous carbon nanotubes decorated with cobalt oxide nanoparticles as an unique and highly efficient electrode material for the oxygen evolution reaction (OER) in electrocatalytic water splitting. The best performing electrode material showed high stability after 10 h, at constant potential of 1.7 V vs. RHE (reversible hydrogen electrode) in a 0.1 M KOH solution and high electrocatalytic activity in OER with low overpotential (0.38 V vs RHE at 10 mA cm−2). The excellent electrocatalytic performance of the electrode is rationalized by the overall 3D macroporous structure and with the firmly integrated CNTs directly grown on the foam, resulting in a large specific surface area, good electrical conductivity, as well as an efficient electrolyte transport into the whole electrode matrix concurrent with an ability to quickly dispose oxygen bubbles into the electrolyte. The eminent properties of the three-dimensional structured carbon matrix, which can be synthesized through a simple, scalable and cost effective pyrolysis process show that it has potential to be implemented in large-scale water electrolysis systems.
format	article
author	Tung Ngoc Pham Tiva Sharifi Robin Sandström William Siljebo Andrey Shchukarev Krisztian Kordas Thomas Wågberg Jyri-Pekka Mikkola
author_facet	Tung Ngoc Pham Tiva Sharifi Robin Sandström William Siljebo Andrey Shchukarev Krisztian Kordas Thomas Wågberg Jyri-Pekka Mikkola
author_sort	Tung Ngoc Pham
title	Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
title_short	Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
title_full	Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
title_fullStr	Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
title_full_unstemmed	Robust hierarchical 3D carbon foam electrode for efficient water electrolysis
title_sort	robust hierarchical 3d carbon foam electrode for efficient water electrolysis
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3c02c1513cfc4a9abf21396386ed1f9d
work_keys_str_mv	AT tungngocpham robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT tivasharifi robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT robinsandstrom robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT williamsiljebo robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT andreyshchukarev robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT krisztiankordas robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT thomaswagberg robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis AT jyripekkamikkola robusthierarchical3dcarbonfoamelectrodeforefficientwaterelectrolysis
_version_	1718388505529286656

Robust hierarchical 3D carbon foam electrode for efficient water electrolysis

Ejemplares similares