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Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media

Exploring low-cost and highly efficient non-noble bifunctional electrocatalysts with high performances for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential for large-scale sustainable energy systems. Herein, the Ni–Co–O–C–P hollow tetragonal microtubes grow...

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Autores principales: Hu, Wenjing, Jiang, Qingqing, Wang, Lin, Hu, Sha, Huang, Zhengxi, Zhou, Tengfei, Yang, Hai-Jian, Hu, Juncheng, Tang, Nanfang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070315/
https://www.ncbi.nlm.nih.gov/pubmed/35530997
http://dx.doi.org/10.1039/c9ra05165a
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author Hu, Wenjing
Jiang, Qingqing
Wang, Lin
Hu, Sha
Huang, Zhengxi
Zhou, Tengfei
Yang, Hai-Jian
Hu, Juncheng
Tang, Nanfang
author_facet Hu, Wenjing
Jiang, Qingqing
Wang, Lin
Hu, Sha
Huang, Zhengxi
Zhou, Tengfei
Yang, Hai-Jian
Hu, Juncheng
Tang, Nanfang
author_sort Hu, Wenjing
collection PubMed
description Exploring low-cost and highly efficient non-noble bifunctional electrocatalysts with high performances for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential for large-scale sustainable energy systems. Herein, the Ni–Co–O–C–P hollow tetragonal microtubes grown on 3D Ni foam (Ni–Co–O–C–P/NF) was synthesized via a one-step solvothermal method and followed by a simple carbon coating and in situ phosphorization treatment. Benefiting from the unique open and hierarchical nano-architectures, the as prepared Ni–Co–O–C–P/NF presents a high activity and durability for both the HER and OER in alkaline media. The overall-water-splitting reaction requires a low cell voltage (1.54 V @ 10 mA cm(−2)) in 1 M KOH when Ni–Co–O–C–P/NF is used as both the anode and cathode. The highly flexible structure can provide a large amount of exposed active sites and shorten the mass transport distance. Furthermore, bimetallic phosphides also favor the electrocatalysis due to the higher electronic conductivity and the synergetic effect. This work demonstrated a promising bifunctional electrocatalyst for water electrolysis in alkaline media with potential in future applications.
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spelling pubmed-90703152022-05-05 Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media Hu, Wenjing Jiang, Qingqing Wang, Lin Hu, Sha Huang, Zhengxi Zhou, Tengfei Yang, Hai-Jian Hu, Juncheng Tang, Nanfang RSC Adv Chemistry Exploring low-cost and highly efficient non-noble bifunctional electrocatalysts with high performances for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential for large-scale sustainable energy systems. Herein, the Ni–Co–O–C–P hollow tetragonal microtubes grown on 3D Ni foam (Ni–Co–O–C–P/NF) was synthesized via a one-step solvothermal method and followed by a simple carbon coating and in situ phosphorization treatment. Benefiting from the unique open and hierarchical nano-architectures, the as prepared Ni–Co–O–C–P/NF presents a high activity and durability for both the HER and OER in alkaline media. The overall-water-splitting reaction requires a low cell voltage (1.54 V @ 10 mA cm(−2)) in 1 M KOH when Ni–Co–O–C–P/NF is used as both the anode and cathode. The highly flexible structure can provide a large amount of exposed active sites and shorten the mass transport distance. Furthermore, bimetallic phosphides also favor the electrocatalysis due to the higher electronic conductivity and the synergetic effect. This work demonstrated a promising bifunctional electrocatalyst for water electrolysis in alkaline media with potential in future applications. The Royal Society of Chemistry 2019-08-20 /pmc/articles/PMC9070315/ /pubmed/35530997 http://dx.doi.org/10.1039/c9ra05165a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Hu, Wenjing
Jiang, Qingqing
Wang, Lin
Hu, Sha
Huang, Zhengxi
Zhou, Tengfei
Yang, Hai-Jian
Hu, Juncheng
Tang, Nanfang
Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title_full Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title_fullStr Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title_full_unstemmed Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title_short Hierarchical Ni–Co–O–C–P hollow tetragonal microtubes grown on Ni foam for efficient overall water splitting in alkaline media
title_sort hierarchical ni–co–o–c–p hollow tetragonal microtubes grown on ni foam for efficient overall water splitting in alkaline media
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070315/
https://www.ncbi.nlm.nih.gov/pubmed/35530997
http://dx.doi.org/10.1039/c9ra05165a
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